It is reported that a space station ______ on the moon in a few years.
A. was built B. will be built
C. is built D. has been built
During the 12th five -year plan, China ____ great achievements in environmental protection.
A. has made B. made C. was making D. will make
I have some difficulty ______English.
A. to learn B. learn C. learning D. learned
You _______be too careful when you are driving.
A. can’t B. mustn’t C. can D. must
Spud practiced _____harder and got the coach to change his mind.
A. too B. even C. little D. many
Tony’s mum looks young and beautiful. It’s hard to imagine she is already in her .
A. fifty B. fifties C. fiftieths D. fiftieth
