The man over there is Mr. Green. He ________ us music.
A.was teaching B.teaches C.has taught D.is teaching
I ________ noodles for my foreign friends, because they will come to my house soon.
A.cooked B.was cooking C.had cooked D.will cook
When her father came back home, Joan_____ with her friend.
A. talked B. talks C. is talking D. was talking
I hear your brother has gone abroad. Can you tell me when he ________？
A.left B.has left C.was leaving D.leaves
The bookstore ________ a big sale. The books there must be very cheap.
A.has had B.had C.is having D.was having
The water dark and dirty. It’s no longer safe to drink.
A.became B.will become C.has become D.was becoming
