1. I (try) have tried several Vietnamese restaurants in Australia, but they are not the same as those in Vietnam. 
→ Thì hiện tại đơn
2. They are tired and they’d like (have) to have a rest.
→ Thì hiện tại đơn
3. Wait! Mai (have)is having breakfast. 
→ Thì hiện tại đơn
4. At the beginning of the film I (realize) realized I’d seen it before.
→ Thì quá khứ đơn
5. I (phone) will phone you as soon as I know the results.
→ Thì tương lai đơn
6. The passengers are tired because they (not sleep)didn't sleep all night.
→ Thì quá khứ đơn
7. I’m waiting for Sue. You (see) Have you seen her?
→ Thì hiện tại đơn
8. When you last (go) did you last go to the cinema?
→ Thì quá khứ đơn
9. We’d better wait here until the rain (stop)stops .
→ Thì hiện tại đơn
10. Thank you for your offer, but I have decided (not accept)not to accept.

→ Thì hiện tại đơn