To make Beijing more beautiful， a lot of flowers and trees ________ every spring.
A. plant B. are planted C. planted D. were planted
Tony knows China very well because he ________ in China since 2003.
A. works B. was working
C. will work D. has worked
––Where’s your Mom， Xiao Hong?
––She ________ to music in her room.
A. listen B. listens
C. is listening D. has listened
––Can you ride a bike?
––No， I ________.
A. may not B. can’t C. needn’t D. mustn’t
––Beijing is a big city， isn’t it?
––Yes. In fact， it’s one of ________ cities in the world.
A. big B. bigger
C. biggest D. the biggest
––________ book is it? I want to have a look.
–– I think it’s Mary’s.
A. Whose B. Which C. What D. Who
