1 . Anybody ________ feels tired should wear energetic colors.

A．where

B．which

C．who

D．whose

2 . After the economic crisis, this company was in serious ______ difficulties.

A．historical

B．abnormal

C．financial

D．pessimistic

3 . One of the bad results of our planet’s being warming up is a(n)________ in the number of natural disasters.

A．result

B．source

C．weight

D．increase

4 . John said he’d been working in the office for an hour, ________ was true.

A．he

B．it

C．which

D．that

5 . Betty likes to ________ small animals, such as kitties and puppies. Which of the following is wrong?

A．feed

B．grow

C．keep

D．raise

6 . ________ provide people with beef, steak and milk.

A．Cattle

B．Poultry

C．Pork

D．Cows

7 . Einstein finally ________ Hans’ plan that Hans took his place and gave the lecture in that distant university.

A．agreed with

B．agreed to

C．agreed on

D．agreed for

8 . Unless ________ to give your opinion at the conference, you should keep silent.

A．being allowed

B．having allowed

C．allowed

D．allowing

9 . A Victoria lily, whose white or purple flowers can grow ________ 45 centimetres across, is the largest of its kind.

A．as long as

B．as wide as

C．as large as

D．as many as

10 . The students waste no time ________ different approaches to improve their academic performance.

A．to find

B．finding

C．to be finding

D．found