Fill in sentences in English, fill in the blanks in English sentences

"An old gentleman with 30 years of teaching experience. "Different English expressions for a sentence.

old man _was\became__ a teacher ( began__ to teach) 30 years ago.

I started teaching 30 years ago, which is 30 years of teaching experience.

old man _has__ worked__ as a teacher in a school __since_30 years ago.

work as a teacher, the work continuation verb can be used in conjunction with a period of time.

is 30 years __since_ the old man began to _teach__ in a school.

As a fixed sentence pattern memorize it is + period of time since + clause (past tense).

years __has_ _passed_ since the old man _began __to teach in a school.

Thirty years have passed since the old man began teaching in school.

old man has been a __teacher_ in a school __for_ 30 years.

Correct the answers upstairs as follows, to ensure accuracy!

1.was, beginning starting (I don't know what the owner's parentheses want to express).

2. has worked, since

3. since, teach

4. has passed, began/started5. teacher, for

became(began) thirty years ago opened. Begin.

has worked since the profession is teacher since in the present perfect tense.

since teach

Thirty years have passed, and there seems to be a missing HAS in front of Teacher for Been

The meaning of the sentence is to please sign our documents and return a copy of our contract. The for here indicates the affiliation. Here are some uses of for:

1.It means "to be, to be". For example: I like some bread and milk for breakfastI like to have bread and milk for breakfast.

2.Indicates reason or reason, which means "because, due to". Such as: thank you for helping me with my englishThank you for helping me learn English.

3.Indicates the object or recipient of the action, which means "to ......"Yes......in other words)". For example: let me pick it up for youLet me pick it up for you.

4.It means time and distance, and it means "counting, reaching". Such as:

i usually do the running for an hour in the morning.I usually run for an hour in the morning.

5.It means "to, to, take, buy", etc. For example: let's go for a walkLet's go for a walk.

6.Indicates the affiliation or purpose, which means "for, suitable for ......of". For example: it's time for schoolIt's time for school.

7."Yes, yes". For example: are you for this plan or against it?Are you for or against this plan?

8.It is used in some fixed combinations. For example: who are you waiting for?Who are you waiting for?

for our file means that a copy of the contract is archived.

for indicates the purpose of return.