A lot of money was raised for the mountain school, where no computers could be ________ to the students there．

usable

valuable

possible

accessible

The Yangtze River is very busy with so many boats and ships ________ every day．

come and go

came and went

coming and going

to come and go

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

an; the

a; ×

an; ×

a; a

The scientist made several discoveries, ________．

which we think are important

which we think that is important

we think which are important

which we think is important

Jack has gone to Australia, but I’m wondering why he ________ in such a hurry．

left

has left

leaves

was leaving

With all the magazines I needed ________, I left the post office．

buying

to buy

bought

to be bought

After graduation I went to Somalia．When I first set foot on ________ strange land, I didn’t know what the future had in ________ store for me．

不填; a

the; the

the; 不填

the; a

We like ________ on Sundays when the whole family get together talking and laughing．

this

that

it

those

I haven’t read _________ of the articles carefully, but I find that there is a striking similarity between them．

each

either

any

neither

It was in the stone house _________ was built as a school by local villagers ________ the boy finished his primary school．

which; that

that; where

which; where

that; which