1. She … (to send) that letter a long time ago.
а)have sent
б)had sent
в)was sending
г)sent
2. While she … (to watch) her favourite programme on TV, he phoned his mother.
а)watched
б)was watching
в)had watched
г)had been watching
3. He ... ( to wait) for Linda for two hours.
а)was waiting
б)had been waiting
в)had waited
г)waited
4. We ... (to translate) the article by five o'clock.
а)translated
б)had translated
в)was translating
г)had been translating
5. What did you buy at the shop yesterday? — I ... (to buy) a book.
а)bought
б)had bought
в)was buying
г)had been buying
6.I …(to do) some snowboarding, while I … (to ski) in Switzerland, but I … (not to try) ice-skating yet.
2.б
3.б
4.a
5.a
6.-