1.we (study) studied a very hard lesson the day before yesterday
2.I (read) have read that novel by hemingway several times before
3.we (study)have studied almost every lesson in this book so far
4. my wife and I (travel) traveled to Mexico by air last summer.
5.I (have ) had a little trouble with my car last week
6.What you (do) do yesterday ?
7.What long you (learn) learnt english?
8. ton never (be) been in HaNoi
9.the plane(stop) stopped at a small town.it then(take) took off immediately afte refuelling
10. she(be) was so happy when she(hear) heard the news that she(cry)cried
11.steven(live)has lived .in london since 1990
12. we( leave) left singapore six months ago
13.I never (eat) eaten snake meat.
14.Diana (meet) met simon for dinner last night
15.oh no! someone (steal) has stolen my bag