Discrimination of English tenses. Easy to understand, have experience in doing questions don t use

To distinguish the tense, it is generally necessary to pay attention to the time adverbial, see the attachment for details.

has gone to a certain place.

has been to have been to a certain place.

According to the meaning of the original sentence: Mr. Li is in **? I have important things to tell him.

You won't find him, he went to Japan (has gone to) so that first of all, a c is determined.

But C means you can find him, he went to Japan. So the context doesn't make sense. The answer can only be A.

aYou can't find him, he's already gone to Japan

B.C. may not be able to find it, d He has been to Japan.

So only a is correct.

Choose ahas been to indicate that you are talking about the place you are talking about now, and you have been to a certain place.

has gone to means that now it is not in the place where it is spoken, but has gone to a certain place.

Choose A, this is mainly the difference between has gone to and has been to, the former means an instantaneous verb, while the latter means a continuation verb One means that the current speech is not there, and the latter means that he has been to Japan, according to the meaning of the sentence, saying that you will not find him, he went to Japan, so choose A

First look at the latter tense, doubt present tense. Will in the future tense. "**Fall" has an effect on the present (whether it will be maintained or not) in the present perfect tense.

The first sentence is in the past tense remained, and the following sentence should be consistent with the first tense. he was thinking。"He's thinking". The other three options are not syntactic.

Judging by not yet, the file has not been fully corrected, "the file is still being corrected", the file is corrected, in the passive voice.

Going to means something that is going to happen in the near future, and Will means something far into the future. Be going to means something that will definitely happen in the future based on subjective judgment, and will means something that is objectively bound to happen in the future.

As can be seen from the back right under my nose, the speaker has realized that the pen has not been lost when he says this (judging by is, i.e., the present), so the first emptiness uses the past tense thought (before the present i.e., is), the second emptiness is earlier than thought, and the past past uses the past perfect tense.

The second empty fell (past tense of fall) asleep is non-continuous and cannot be used in the continuous tense. As here it denotes that two actions happen together.

Let's translate it first.

A friend of mine came home from a vacation only to find that the house had been broken into. ”

The latter action takes place before the returned, i.e., the past past, with the past perfect tense.

If you don't understand it, you will mainly look at some questions with answers and analysis, and then comprehend it yourself.

If you still don't understand, you can continue to ask.

Welcome to the adoption of o( o haha

Go check it out.

If you read it, you should be able to make it yourself.

Singular three ending words +s, past tense +ed, ongoing and after prepositions after the verb +ing, two consonants in the middle of the ** vowel when writing the ending word +ing

The whole of a thing is used for singular and triple use, and the plural case is used for are.

These are more important, if you want to look at the grammar book oh hehe.

It is recommended that you buy a copy of the English essentials for the high school entrance examination.

Simple present tense.

If the subject is in the subject + v form.

If the subject is. Predicate verb + s or es

Simple past tense.

Subject + DID + Other.

In declarative sentences in the simple present tense, it is generally at the end of the verb +ed that ends with e + d

If there is only one consonant letter at the end, the stressed closed syllable word will be double-written first, and then ed will be added, and the word ending with the consonant letter +y will be changed to i first, and then ed will be added

There are also some irregular verbs that need to be remembered separately.

Simple future tense.

will/shall/be

goingto + verb form.

Present continuous tense.

am is are + verb ing

is the third singular or he

sheit uncountable noun ami

are plural or i

weyouthey

Past continuous tense.

was were+ present participle.

Pretty much change them to ing in the normal present tense

Past Perfect Tense.

had + past participle.

Past future tense.

would+v prototype.