If there is anything wrong with the sentence, please ________．

pick it out

pick it up

pick it

pick it on

A good student is honest and kind to others．In other words, he never ________ his friends．

remarks

debates

betrays

blames

Wouldn’t it be ________ wonderful world if all nations lived in ________ peace with one another?

a;/

the;/

a; the

the; the

We wanted to do everything following the schedule, but it didn’t ________ as planned．

make out

come up

turn out

go on

I ________ have watched that movie ---it will give me horrible dreams．

shouldn’t

needn’t

couldn’t

mustn’t

There was so much smoke in the factory ________ the workers were working ________ the firefighters couldn't see clearly．

that; that

that; where

where; that

where; where

Once lost, ________．

it is hard to get such a chance again

to get such a chance will be difficult

one can never get such a chance again

such a chance might never come again

We can stay here as long as our supplies ________．

hold out

hold on

hold up

hold into

How many decades will have to pass ________ scientists succeed in providing a cure for cancer?

until

when

before

since

By the time the sun sets, it ________ already stopped raining．

has

will have

had

would have