As is often pointed out, knowledge is a two-edged weapon which can be used ________ for good or evil.
I’m sorry I _______ your lecture yesterday, but I _____ busy recently. A missed, have been B miss, am C had missed, was D have missed, had been
If he _______, don’t interrupt him.
I’ve bought an English dictionary which you can ____ if you meet new words.A get to B come to C refer to D look up
Susan, ______ university student from Europe, teaches me ______ art in her spare time.
____ to complete the job on time, they set out to work immediately.