---Look! Why are there so many people?
---There are some policemen. I think there must be a traffic accident _____in the street.
A.to happen B. happen
C.is happened D. Happening
---Why didn't you go to the party last night? --- Because I ___________.
A. wasn‘t invited B. didn‘t invited
C. haven‘t invited D. don‘t invited
His grandfather _____________ for over two years.
A. has died B. has been dead
C. had dead D. died
---This wine tastes a little bit strange. ----That's really so. It is made _______ apples.
A. of B. from C. by D. in
The man regretted _________off his old ancestral house.
A. sell B. to sell C. sold D. selling
--- Would you like to go there with me? --- Yes, I shall go unless I ______ too busy.
A. won‘t be B. am C. am not D. will be
