I was told that there were about 50 foreign students ________ Chinese in the school, most ________ were from Germany．

study; of whom

study; of them

studying; of them

studying; of whom

There is no light in the dormitory．They must have gone to the lecture, ________ they?

didn’t

don’t

mustn’t

haven’t

I don’t think it was my carelessness that caused such a great loss to our school, ________?

do I

wasn’t it

didn’t it

was it

There aren’t many cafes, and let’s stop at the next place we see, ________?

are there

will you

shall we

don’t you

________ you have got your license, why not drive the car yourself?

Ever since

Now that

Even though

As long as

Is the Haihe River, ________ through Tianjin, very large?

which flows

flows

which one flows

flowed

There is a lot of ink in the bottle, ________?

isn’t there

is there

isn’t it

is it

The science of medicine, ________ progress has been very rapid recently, is perhaps the most important of all the sciences．

in which

with which

to which

for whom

She gave me another piece of advice, ________ of great help to the research work．

which I think it is

I think which is

which I think is

I think it is

All the countries will join hands against terrorism, ________ was agreed to at the international conference．

that

it

as

what