The World Wide Web is sometimes jokingly called the World Wide Wait because it ________ be very slow．

A．should

B．must

C．will

D．can

There's no light on－they ________ be at home．

A．can't

B．mustn't

C．needn't

D．shouldn't

－Did you enjoy your last journey to Hawaii?

－No, it ________ for several days when we had arrived, so we had to stay in the room．

A．was raining

B．had been raining

C．has been raining

D．rained

I ________ when the telephone rang．

A．am going to leave

B．was about to leave

C．would leave

D．had left

－Has the new book ________?

－Not yet, it ________．

A．come out; is printed

B．published; is being printed

C．brought out; has been printed

D．come out; is being printed

－How did you have your bike damaged that badly?

－I ________ the bike so fast as to knock into a tall tree．

A．have ridden

B．was riding

C．have been riding

D．had ridden

It is very hard for us to equip ourselves with the most advanced high-tech products like mobile phones, for the technology ________ very fast．

A．has changed

B．is changing

C．will change

D．changes

－What did our English teacher ask us to do?

－Homework．________ you ________ to her?

A．Aren't; listening

B．Weren't; listening

C．Haven't; listened

D．Hadn't; listened

－Did you catch the first train this morning?

－No, the train ________ when I got there at 6∶00．

A．left

B．have left

C．had left

D．was leaving

－I did not see you at the party．Where were you?

－I ________ chess with some of my friends who had come all the way from Australia．

A．had played

B．was playing

C．have played

D．am playing