The past decades have witnessed China’s many scientific achievements, _____ the development of Shenwei supercomputers is a typical example.
A.to which B.for which C.at which D.of which
—Many people in England love to give advice on weather reporting.
—Yes, but I think the weather office’s computers _____ be more accurate.
A.can B.need C.ought to D.might
As John Lennon once said, life is ________ happens to you while you are busy making other plans.
A.Which B.that
C.what D.where
He is only too ready to help others, seldom, ____, refusing them when they turn to him.
A.if never B.if ever C.if not D.if any
The idea puzzled me so much that I stopped for a few seconds to try to ______.
A.make it over B.make it off
C.make it up D.make it out
— I hear Katherine won the first prize in the English Speech Contest held last Sunday.
— There is no surprise. She _________ for weeks.
A.has been practicing B.is practicing
C.had been practicing D.practiced
