1. I ______________ (learn) English for nearly 15 years.
have learned
2. They ___________ (not eat) anything since yesterday.
have not eaten/ haven't eaten
3. ______ you _______ (see) Peter lately?
Have seen
4. My boyfriend (give)______________up smoking for 2 months.
has given
5. The population of India (increase)______________since 1992.
has increased
6. We (leave)_______________ Singapore six months ago.
left
7. My wife and I (travel) ________________ to Mexico by air last summer.
travelled
8. We (study)____________________almost every lesson in this book so far.
have studied
9. Tom ( be) _______ to HN twice .He loves it very much.
has been
10. The last time I (go) ________________ to HN was in May.
went
11. Steven (live)_________________ in London since 1990.
has lived
12. My students (not submit) __________ their homework to me last Sunday.
did not submit/ didn't submit
13. My hobbies (be) __________ travelling, cooking and garderning.
are
14. The morning bus (be) _________ always crowded, please hurry!
is
15. When I was a child, I (enjoy) ______ playing with my brothers and sisters.
enjoyed
