1 . Desert plants have ________ to the extreme heat by evolving features like thick skins to reduce water loss.

A．contributed

B．adapted

C．belonged.

D．stuck

2 . Driving is very simple if you ________ the rules.

A．are stick to

B．insist in

C．stick to

D．will stick to

3 . After a while, his eyes ______the dark in the cave.

A．adjusted to

B．contributed to

C．led to

D．stuck to

4 . The new employee found it challenging to ________ the working environment in the new company due to the significant cultural differences.

A．contribute to	B．adapt to
C．lead to	D．stick to

5 . Old people often ________ their children to look after them in their old age.

A．care about

B．rely on

C．search for

D．stick to

6 . His carelessness in driving _____ the accident.

A．stick to

B．used to

C．object to

D．lead to

7 . They were just about to ________ the question ________ suddenly they found the answer.

A．give up; when

B．give in; as

C．work out; while

D．stick to; since

8 . We must take positive steps to________the problem.

A．look up to

B．deal with

C．stick to

D．talk back

9 . Minor Snow ______ the time when it starts to snow ______ in China’s northern areas and the temperature continues to drop.

A．sticks to; initially	B．objects to; ultimately
C．refers to; mostly	D．contributes to; entirely

10 . Because Edgar was convinced of the accuracy of this fact, he _____ his opinion.

A．struck at

B．strove for

C．stuck to

D．stood for