The two girls _____ how to dance one month ago and now they can dance well.
A. taught B. have taught
C. are taught D. were taught
Write it possible and try not to make any mistake.
A. as careful as B. as carefully as
C. more careful D. less careful
—Come here, I’ll tell you ___________ about your study. —OK, we’re coming.
A. anything important B. something important
C. important anything D. important something
On my ______ birthday, I got a guitar as a gift from my father.
A. twelve B. twelfth C. the twelve D. the twelfth
—Tina, I have cleaned most of the windows.
—That's very kind you. It's difficult me to do it all by myself.
A. of； for B. for； of
C. for； for D. of； of
—Is that man Mr. Smith?
—It ______ be him. He has gone to New York on business.
A. may not B. needn’t
C. can’t D. mustn’t
