English tense questions, Ken body is as follows, ask about English tenses

1 Its tense should be PastCompletePresentComplete=PastPresentPresentPresentPresent Since it is something that happened in the past, and the emphasis is on the influence of the present, it is natural to use the present perfect tense. Emphasizing the past past and the impact of what happened in the past on the past is used in the past perfect tense.

2. There is a sense of continuity when using it. The use of had been growing there, that is, the past perfect continuous tense, can indicate that the tree has grown from the past and is still growing in the past, but if you use had grown there, it can only mean that the tree has grown in the past, but it is not known whether it has grown in the past (some around, you see "past" as a point in time). So the first statement is more appropriate.

In fact, the past was done when the number of countries from front to back was done in the past and completed now. The impact of what happened in the past and the emphasis with nature is now complete. Emphasize the past past, what happened in the past, the past that preceded it perfect.

2. Carry out a sense of continuity. Previously growing there in the past when the past is completed, the tree has grown from the past and is still growing in the past, but if the tree grows in the past, it can only be stated, but it is not known whether it has grown (around some of the past, you take "past" as a single point in time). Therefore, it is more appropriate to say in a more appropriate way.

Hello, this is an inverted sentence, the tense is when the bell rings, and at the same time, the class is over, and the expression happens at the same time, and this sentence pattern usually does not use the past tense.

For example, when I'm eating, it's in the present tense. I came back at the time of completion.

Choose B because the question is do you plan to go to the film at the festival? Be goingto means what I intend to do, and the answer is that I don't think about going to the movies, and the answer should be in the future tense, I don't think about it, and the other tenses are not right.

Choose a, because the second half of the sentence is in the simple present tense, and the tense is the same, so also choose the present tense.

Hello; [Analysis]: 1. The fourth sentence is the simple past tense, and the marker word is took, (if you want to identify the tense, you can use the specific verb.)

form) e.g. is taking is the present continuous tense; takes is the simple present tense; とオ is general.

Past tense; taken is the present perfect tense.

2. off is used in conjunction with take, because the phrase take sth off means "will......Take it off", so in the sentence.

It could be: he took off his coat. It could also be: he took his coat offIt means the same thing.