Question 15. While we_______ football, it suddenly rained.

A. have played B. are playing C. were playing D. had played

(While+QKTD, QKĐ)

Question 16. Foods ________ into energy in the digestive system.

A. are broken down and converted

B. broken down and converted

C. break down and convert

D. are broken down and convert

(Thì bị động của HTĐ)

Question 17. It usually rains here a lot, but it _____ now.

A. isn’t raining B. doesn’t rain C. didn’t rain D. is raining

(có từ now nên dùng HTTD)

Question 18 .“I’ve decided to repaint my daughter’s room.” -“What colour ______ it?

A. will you have painted B. will you paint C. are you going to paint D. do you paint

(vì có từ decide là đã có dự định nên dùng be going to V1)