1. The Eifel Tower in Paris (visit)_____________ by millions of people every year.

2. Tet holiday (celebrate) _____________at the end of January or the beginning of February.

3. My computer (use) _____________for over five years.

4. The first festival (hold) _____________ nearly six hundred years ago.

5. Since 1990s, more and more paper (recycle) _____________.

6. Shakespeare (write) _____________ more than thirty-seven plays.

7. I (not see) _____________ Lan since last Friday.

8. When Tom (arrive) _____________ yesterday evening, we (have) _____________ dinner.

9. The letter (post) _____________ a week ago, and it (arrive) _____________yesterday.

10. Originally, the book (write) _____________ in English, and a few years later it (translate)

_____________ into several languages.