Complete the sentences using the information in the brackets. Use the past perfect in negative sentences. Study the example. Example:
We ate at a restaurant last night because I (buy) anything for dinner.
We ate at a restaurant last night because I had not bought (hadn't bought) anything for dinner.

1. The man was hit by a red car. The driver ___ (not/see) him.

2. The apartment was dirty. They ___ (not/clean) it for a long time.

3. The dog was really hungry. Mary ___ (not/feed) it since Monday.

4. Derrick was very tired. He ___ (not/sleep) at all.

5.The thief could walk right into the house because you ___ (not/lock) the door.

1 .Who's in charge of Elena. Today anyone not?-Yes. Three students not. 2.No one today is missing. All nine students here today. 3. Victor here?No he is missing. 4.What is the date today? -15 October. 5.Can I ask you a question? -Please. - Where's number 48?-I can't answer your question. Could you please ask Secretary. 6. As for English headphones ? 7.To turn on a tape recorder ? - Yes please. Turn off the tape recorder? - Yes please. Turn off the tape recorder? - No wait a bit . I start reading? -Yes. Erase from the Board ? - please. to open the window? there's no need. To read this sentence again? Yes please. 8 . please read louder. speak louder please. sing louder please. enough. 9. repeat the sentence 2 times . read the text 3 times. 10 .Let's go to the Dean during the break. Let's fix the mistakes in the dictation. 11 .Will not bring you a cool magazine? 12.You can do this exercise today? - Yes. you can write a text today? no . I can't write the text today. 13.These exercises are difficult. Repeat them. these lyrics lungs. you don't have to repeat them. 14.can sits .15. keep reading. 16.quieter please. the lesson is not over. How long to call?- only two minutes. 17.As proiznositsya the word palatalization. ? 18.how to spell the word pronunciation? 19.put the questions to the text. 20.please do not prompt. 21.bring your notebook please. 22. first, put the cassette and then turn on the tape recorder. now please rewind the tape. 24.You have classes on Friday? 3 hours ago

1 They had been skating together for 7 years before they took part in the competition.

They hadn't been skating together for 7 years before they took part in the competition.

Had they been skating together for 7 years before they took part in the competition?

2 We had been picking apples the whole day so we were tired.

We hadn't been picking up apples the whole day, so we weren't tired

Had we been picking up apples the whole day, so we were tired!

3 Sam had been working here for 2 years before he left to go to the university.

Sam hadn't been working here for 2 years before he left to go to the university.

Had Sam been working here for 2 years before he left to go to the university?