－Did Jack come back early last night?

－Yes．It was not yet 8 o'clock ________ he arrived home．

when

that

before

but

－I'm considering ________ to Dalian by train for my holiday．

－Why not try ________ by ship for a change．

going; to travel

to go; to travel

going; traveling

to go; traveling

－What do you think of our hometown?

－Very beautiful．You know it is the first time that I ________ here．

will be

was

have been

had been

－Could I speak to Mr．White?

－I'm afraid he ________ answer your call now．He is holding a meeting．

can't

needn't

mustn't

shouldn't

－Where are we going for the vacation, the mountains or the sea?

－________ Either will be fine with me．

Definitely!

It's up to you．

You've got it!

That's great!

－Do you mind my taking this seat?

－________．

Yes, sit down please

No, of course not

Yes, take it please

No, you can't take it

－Why are you late today．Mary?

－I'm sorry, Mr Li．My bike ________ on the way．

broke down

has broken down

breaks down

had broken down

－Do you mean to play the hero in the film?

－________．But it should be a character I like．

Not surprisingly

Not necessarily

Not importantly

Not absolutely

－Can you describe ________ it happened?

－Yes, I was riding on my bike ________ a car knocked me down from behind．

when; as

how; as

how; when

how; while

－I was trying to carry out the plan, but I failed．

－Well, you ________, for we were uncertain it would do ________．

needn't do that, in fact

needn't have done, in effect

needn't have, in practice

needn't, in time