While he was investigating ways to improve the telescope, Newton made ________ discovery which completely changed ________ man’s understanding of color．

a；不填

a; the

不填；the

the; a

It is reported that the police will soon ________ the case of the two missing children．

look upon

look after

look into

look out

Don’t be discouraged．________ things as they are and you’ll enjoy every day of your life．

Taking

To take

Take

Taken

Don't be so discouraged．If you ________ such feelings, you will do better next time．

carry on

get back

break down

put away

He has left out the most important reason why he ________ last night．

stayed up

put up

picked up

kept up

Mr White, who comes from ________ European country, has formed ________ habit of attending ________ church on Sundays．

an；×；the

a; the；×

an; the；×

a; a; a

The coach, because of the driver's carelessness, was ________ and crashed over the cliff on such a cold December morning．

in support

out of control

in charge

at the mercy

We ________ last night , but we went to the concert instead．

must have studied

might study

should have studied

would study

They tried to find a table for two．But they were all ________．

given away

kept away

taken up

used up

Over two thirds of the population were believed to have no ________ to the health care in the west rural area in China．

aid

basis

belief

access