Several English multiple-choice questions

Me too. Generally, Do, did and other auxiliary verbs are used instead of have.

2. choose B.

Agree, this is the key. Pay attention to distinguish it from the first question.

choose one

The weather in Beijing is worse than that in Nanjing. That is usually used to refer to the weather.

Choose C.

No students were writing when I came in. If there is a positive meaning, choose C or D, and formally write the action singular. Choose C.

choose one

The principle of proximity, choose a.

Option d

The subject is plural and the predicate verb is plural. In addition, it means passive, and choose D.

Choose B.

Students are our appositive language, which has a confusing effect here. Each represents an individual concept, use the singular number and choose B.

Step 8 choose one

When the subject is a plural phrase representing time, weight, distance and value, the predicate verb is singular.

9. choose C.

To express your purpose, use infinitive. Live is an intransitive verb, you should add it.

10. choose C.

Fixed collocation: busy doing sth.