Reason: this question mainly tests the past continuous tense ... composition: past tense be verb (was, were+doing[ present participle])

2. When was the car invented? I'm sorry, I don't know.

Reason: The main point of this question is the passive voice, and the car was invented. The invention of the automobile has become a thing of the past. Composition: be verb+past participle

Great changes have taken place in Tongre (place name) in the past five years.

Reason: The main test point of this question is the present perfect tense and the difference between "occurrence" and "occurrence". Both words have the meaning of happening. But "occurrence" refers to sudden release, and unforeseen "occurrence" is planned.

He had lived in Xiang Xing for five years when I heard the news.

Reason: the main test point of this question is the present perfect tense. The adverbial of time in the present perfect tense has been for+ for some time.

From+_ time point, or a period before+.

What is the subject, so we use the third person singular has.

5. What happened to the thief? Sorry, I can't answer this question. )

Mr. White came to our school in 2006, and he has been teaching us English since then.

Reason: the main test point of this question is that he is the third person singular in the present perfect tense, because he used has

John likes playing football very much. He spends an hour playing football every day.

Reason: Every day ... means everyday, so it can be inferred that this sentence uses the simple present tense, because it is the third person singular, so it uses flowers. .....

Hehe, I hope I can help you. . .