He ______ writing the paper now. He hadn’t written a single word when I left him ten minutes ago.
A.shouldn’t be B.can’t have finished
C.can’t be D.mustn’t have finished
American fathers ______ more than twice the amount of time with their children than they used to in years past, due to a sweeping new trend called "unemployment".
A.were spending B.spent C.are spending D.have spent
Many companies don’t realize ____ important the customers are, which is why they lose their customers unconsciously.
A.what B.whether C.how D.which
Friends have to learn to _____ annoying habits and to bear differences of opinion．
A.put up with B.come up with
C.keep up with D.end up with
—Jenny, I hate to say it, but you really must go!
—________.
A.All right, if you insist B.Not likely
C.Mind your own business D.You must be kidding
Was it in 2008 ______ he was still at middle school _____ the boy became expert at computer?
A.that; where B.when; where C.that; when D.when; that
