2. Use present perfect tense and simple past tense.
1. They (not see)……………..the film Titanic yet.
2. Tom( call)………………his boss recently.
3.John( not read)…… …………..the letter from Mary yesterday.
4. We(not begin)… ………….to learn for the test yet.
5.I( meet)…… ……………..Robert at the supermarket 2 days ago.
6. Nancy(be)…………………to VietNam several times.
7. I(not see)…………your brother yet.
8. My pen isn’t here any more. Someone(take)……………….it already.