14.8.25 - BT Hiện Tại Hoàn Thành và Tiếp Diễn

Although the local authorities (take) ………………………………… some methods to solve the pollution issue, there seems to be little improvement in the air quality.

Xuan Bac, a well-known comedian, (start) ………………………………… acting since he was a student in the University of Stage and Cinematography.

I (be) ………………………………… to some places in the world. However, Singapore is the most beautiful country that I (ever/ visit) ………………………………….

I (collect) ………………………………… a lot of relevant information for the final evaluation essay.

The person that I admire the most in my life is my lecturer, Ms. Linh, who (do) ………………………………… a lot of research that is related to foreign affairs.

Exercise 2. Viết lại câu sao cho nghĩa không đổi.

1. The last time she came back to her hometown was 4 years ago.

2. → She hasn't ............................................................................................................

2. He started working as a bank clerk 3 months ago.

→ He has ............................................................................................................

3. It has been 5 years since we first flew to Singapore.

→ We have ............................................................................................................

4. I last had my hair cut in November.

→ I haven't ............................................................................................................

5. The last time we called each other was 5 months ago.

→ We haven't ............................................................................................................