—Jack ,I have ________working out the math problem .
--Don’t worry . Let me help you .
A. fun B. trouble C. experience
—Tony misses his hometown very much.
—Yes, he from his hometown _____he was twenty years old.
A. has been away; for
B. has left; since
C. has been away ; since
I have so much homework to do everyday that I don’t go to bed ______ 11 o’clock.
A. forB. sinceC. until
－I haven’t been to the space museum.
－_______.
A. Me tooB. Me neither C. So have I
We should have some dreams and try to ________ them.
A. drop B. imagine C. achieve
_______ my wish, I want to rest somewhere quiet and beautiful for two months.
A. In front of B. As forC. At first