1 . Dr. Rowan, ______ secretary resigned two weeks ago, has had to do all his own typing.

A．whose

B．of whom

C．of which

D．which

2 . _____is known to all, China will be an _____and powerful country in 20 or 30 years or so.

A．That; advancing

B．This; advanced

C．As; advanced

D．It; advancing

3 . ______ is known to us all, things can easily go wrong when people are under ______.

A．Which; control

B．As; load

C．It; strength

D．As; stress

5 . ________ all his friends say, he is usually warm-hearted, loving and generous.

A．Which

B．As

C．What

D．That

6 . 【2018·北京】She and her family bicycle to work, _________ helps them keep fit.

A．which	B．who
C．as	D．that

8 . Last winter, part of Britain was struck by snowstorms, from ________ effects most passengers in Heathrow were suffering a lot, especially those with children.

A．which

B．what

C．whose

D．that

9 . Easy Ways to Build Vocabulary

It's not all that hard to build an advanced and large vocabulary. Like many things in life, it's     1    ongoing process, and the best part of the process is that there's enough room for improvement,     2    means you'll just keep getting better and better. Of course you have to work at it. You wouldn't think that a few     3    (month) of exercise in your teens would be enough     4     the rest of your life, and that's also true for building your vocabulary--you have to keep at it daily, and pretty soon you will find that you have an excellent vocabulary.

One of the     5    (effect) ways to build vocabulary is to read good books. You need to     6    (real) read at least one good book a week, preferably a classic. This isn't as hard as it     7    (sound), and it is far better than any other method because you improve your vocabulary while     8    (read) an interesting piece of literature. Another nice thing is that you learn both new words and     9    (they) use unconsciously, meaning that you will tend to use the words     10    (learn) this way in conversations almost automatically.