VIII. Complete sentences using the words/ phrases given in their correct forms. You can add some more necessary.

Câu hỏi

traffic system/ Ha Noi city/ be/ upgraded/ the last five years.

A. The traffic system in Ha Noi city has upgraded over the last five years.

B. The traffic system in Ha Noi city has been upgraded over the last five years.

C. The traffic system in Ha Noi city has be upgraded over the last five years.

D. The traffic system in Ha Noi city has being upgraded over the last five years.

Tiếng Anh 9-Unit 6