The captain gave an order in the difficult situation ________ the sailors throw away everything that was on board the ship．

what

which

as

that

Disthinguished guests and friends, welcome to our school!________ the ceremony of the 50^th anniversary this morning are our alumni(校友)from home and abroad．

Attend

To attend

Attending

Having attended

－Can we fix a time for the party?

－We can’t have the party ________ none of us have any classes．

except

except for

except when

except that

They finally reached ________ they had long dreamed of．

where

the place

that

there where

If you sleep short of 7 hours, you are three times ________ to catch a cold．

possible

certainly

probable

likely

－It’s so nice to enjoy the sunshine here on the green grass．

－You ________ us a right place．

had introduced

are introducing

have introduced

introduce

－Is your school bigger than ours?

－Yes．I guess it is ________ your school．

as twice the size of

as two thirds big as

bigger than half

one third bigger than

The disease, ________, could spread very fast．

unless well controlling

if not well controlled

when not to control

although not being well controlled

To prevent cybercrime more efficiently, it is important to make new laws and create international standards for them similar to ________ concerning international airspace．

that

what

one

those

I ________ have gone the concert because I know nothing about that kind of music．

couldn’t

mustn’t

shouldn’t

oughtn’t