Відповідь:

Had you studied English?

Had we studied English?

Had they studied English?

Had he finished the test?

had you been learning?

I had studied English

She had finished the test

It had finished the test

I had been doing

They had been playing tennis

I had played

The hadn't been playing tennis

She hadn't finished the test

I hadn't been drinking

i hadn't finished my work

He hadn't seen the film

he hadn't worked

Ответ:

1. He had gone home before we arrived at the party.

Had he gone home before we arrived at the party?

We had not gone home before we arrived at the party.

2. I had known him before he came in our class.

I hadn't known him before he came in our class.

Had you known him before he came in our class?

3. I had put on weight before I got married.

I hadn't put on weight before I got married.

Had you put on weight before you got married?

4. The film began after we had arrived at

the cinema.

The film didn't begin after we had arrived at

the cinema.

Did the film begin after we had arrived at

the cinema?

5. Had you phoned him before you learnt  the news?

I hadn't phoned him before I learnt  the news.

I had phoned him before I learnt  the news.

6. I had explained the rule before I gave a test.

I hadn't explained the rule before I gave a test.

Had you explained the rule before you gave a test?

7. He had taken care of his sister before

she got married to the right person.

He hadn't taken care of his sister before

she got married to the right person.

Had he taken care of his sister before

she got married to the right person?

Объяснение:

в 4 пришлось менять Past Simple, потому что в начале предложения стоит Past Simple. Поэтому 7, если 4-ое не подойдет.