Since the sales promotion, all the items _______well.
| A．have been sold | B．were sold | C．had sold | D．have been selling |
—Why didn’t you remind him of the possible danger?
—But what _______ otherwise? He never listens to me.
| A．could I do | B．could I have done | C．should I do | D．must I have done |
The new means of transport ________ in this city, so whether it will work out remains to be seen.
| A．have never tried | B．has never tried | C．have never been tried | D．has never been tried |
It wasn’t until then _______ their marriage was breaking up because they had little in common.
| A．did I realize | B．that I realized | C．had I realize | D．when I realized |
The earthquake in Japan, measuring 9.0 on the Richter Scale, was so violent _______ cause a series of explosions of the nuclear reactors in several power stations.
| A．to | B．that | C．as to | D．as that |
By the time you arrive home, I _______, so please don’t make any noise when you come in．
| A．have been sleeping | B．would have slept | C．had slept | D．shall be sleeping |