cần giải thích gấp ạ 1. I (see) ________________ a car accident while I (wait) _________________ for you on this corner yesterday. 2. I am sure that I (recognize) _________________ him when I (see) _________________ him again. 3. He (lose) _________________ his job last month and since then he (be) _________________ out of work. 4. I meant (buy) ________________ an evening paper but I didn't see anyone (sell) ________________ them. 5. Do you feel like (dine) ___________ out or would you rather (have) _____________ dinner at home? 6. His greatest ambition is (choose) _________________ (take) ________________ part in the Olympic Games. 7. I (lose) _______________ my car key. (You give) _________________ me a lift? 8. The test (not be) _________________ as difficult as they (think) _________________ at first. 9. The teacher asked those who (complete) ___________ their tests (turn) _____________ in their papers. 10. She suggested (give) ________________ a party (celebrate) __________________ the success.