Chia quá khứ đơn hay hiện tại hoàn thành :
1. (you / be / ever) ................................. to London ?
2. Yes, I ( be ) .................................. there three times.
3. When ( be ) ...................... the last time you ( be ) ................................. there ?
4. Last summer, I ( spend ) ......................... two weeks in Brighton with my parents and we ( go ) ....................... to London one weekend.
5. (you / like ) .................................. it ?
6. Oh yes. We really (have) ................................................... a great time in London.
7. Lucky you ! I (be / never ) ....................... to London.
8. I (see / already) .............................. Madonna live in concert.
9. I (spend) ......................................... my summer holiday in Australia last year.
10. I (be / not) ........................ to Australia yet.
* Một số dấu hiệu nhận biệt của hiện tại hoàn thành :
for, since, never, already, so far, before,.......
Help me !