Teachers have to constantly update their knowledge in order to maintain their professional ____.
A. consequence B. independence C. competence D. intelligence
You must have read about Mark Twain long ago, ____?
A. mustn't you B. haven't you C. didn't you D. needn't you
Everyone doesn't agree to the plan. Some support it while I'm one of ___ opposed to it.
A. those who B. who C. those D. that
Tom, behave yourself! If you keep on doing that, you'll ____ in serious trouble.
A. shut up B. end up C. take up D. pick up
I would like to buy some good English reference books, but _______ was available from the bookstore, where I only found some Chinese ones.
A. nothing B. no one C. none D. neither
Everybody has _____ responsibility to save water, if future generations are to enjoy
____ similar standard of living to the one we enjoy now.
A. the; / B. a; a C. /; the D. a; the
