16. Nowadays, many historical places (destroy) .........are destroyed......... seriously.

17. A new textbook (publish) ........will be published....... next month.

18. The Eiffel Tower is in Paris.It (visit) .....is visited...... by millions of people every year.

19. Since the 1980s more and more paper(recycle) ........have  recycled........\

chia thì HTHT

dấu hieuj since

20. Tet holiday in Viet Nam (celebrate) .............. celebrates...... around January and February.

hoạt động xảy ra hàng năm

16. Nowadays, many historical places (destroy) .........are destroyed......... seriously.

17. A new textbook (publish) ........will be published....... next month.

18. The Eiffel Tower is in Paris.It (visit) .....is visited...... by millions of people every year.

19. Since the 1980s more and more paper(recycle) ........have been recycled........

16.are destroyed

17..will be published

18.is visited

19.have been recycled