This food is free. You don't have to _________ it.
A. look for B. pay for
C. ask for D. wait for
We're proud that China _________ stronger and stronger these years.
A. will become B. became
C. is becoming D. was becoming
The movie covers all of Chinese history. It is _________ worth seeing again.
A. mainly B. really C. possibly D. hardly
Paula is pleased that she _________ her lost watch.
A. finds B. found C. has found D. will find
I _________ the shops. Can I get you anything?
A. go to B. went to
C. have gone to D. am going to
Mom, I'm very _________ for all your love.
A. thankful B. careful C. useful D. helpful
