There used ________ a small river in front of my house.The water in it was clean.
A. be B. to be
C. to being D. is
In recent years, the economy of our country ________ rapidly.
A. is increasing B. have increased
C. increased D. has increased
Miss Lin____________ a lot of work for the poor area since 2010.
A. does B. did C. has done D. will do
—Have you had your breakfast yet?
—No.Mom ________ it for me now.
A. was cooking B. is cooking
C. cooks D. cooked
—Could I have a look at your pictures?
—Yes, of course you________.
A. could B. can
C. will D. might
I have my own room in my house, so I ________ do what I want in it.
A. must B. have to
C. need to D. can
