1.Lan (meet).....................................her at the party 3 years ago
2.Last summer vacation , Mon (not buy).................................me a new buy
3.When he(leave)......................................for work last week
4.What you(do).....................................yesterday
5.We (begin) ..............................................to learn English 3 years ago
6.She (be).............................................an engineer last week
7. Lan (be not)..............................................at home yesterday
8.He (wear).....................................................the shirt last week
9.They (be)......................................here yesterday
10.You (go).........................................to school yesterday
11.Tam(be) ....................................at home last night-Yes he (be)