Tất cả đều là Câu bị động :

- Thì HTĐ : S + be + V3 ( by O )

- Thì QKĐ : S + was / were + V3 ( by O )

- Thì HTTD : S + am,is,are + being + V3 ( by O )

- Thì QKTD : S + was / were + being + V3 ( by O )

- Thì HTHT : S + have / has + been + V3 ( by O )

- Thì TLĐ : S + will be + V3 ( by O )

1.The wheel was invented thousands of years ago

2.Is a statue of Chu Van An being built ?

3.Is the Temple of Literature surrounded by four busy streets ?

4.Pencils won't be provided at the test , so please bring your own

5.We haven't been taught by Mr.Binh since the last semester

6.That experiment is being done by a student teacher

7.Was this dictionary bought two weeks ago ?

8.I am not impressed about science and technology by Alan's knowledge

9.A new school is being built here next year

10.This computer has been used for two years

`#  FF`