What difficulty I had _____ the dirty walls! I had no choice but to have it ____ again.
A. clean, paintB. cleaning, painting
C. cleaned, to paintD. cleaning, painted
You don’t know ________ I want to see you again. It’s years since I saw you last time.
A. how soonB. how longC. how oftenD. how much
Do you know who _______ help if you feel stressed?
A. to askB. asks forC. to ask forD. asks to
He ran so fast that he ________ my cup. How careless he is!
A. knocked overB. put awayC. knocked onD. put up
— Did you see Dr Ma yesterday afternoon?
—When I got to his office, he ______. So we just talked little.
A. left B. has leftC. was leaving D. had left
- Someone is knocking at the door.
- It ______ be Tom. He is still in the school.
A. can’t B. mustn’t C. could not D. might; not
