When you have difficulty, do remember to ________．Two heads are better than one．

A．make a decision

B．give up

C．ask for help

D．give advice

－What do you think of the four classics(名著)of China?

－I hear that they are wonderful, but I've read ________ of them．

A．all

B．both

C．neither

D．none

Today, we have many other ________ to pay besides coins or paper money．

A．excuses

B．ways

C．chances

D．plans

Humans are cutting down the forests to ________ the land for other uses．

A．clear

B．destroy

C．cover

D．protect

I ________ go to the theatre, because I don't like operas at all．

A．always

B．often

C．sometimes

D．never

Write down the phone number, ________ you'll forget it．

A．so

B．and

C．but

D．or

We can get fresh water from rain, from rivers, or from ________ the ground．

A．across

B．under

C．over

D．off

They develop their skills ________ they can do things better and better．

A．however

B．because

C．since

D．so that

He was late this morning, because the bus was too ________ for him to get on．

A．quiet

B．tidy

C．crowded

D．noisy

________ is celebrated on September 10'．

A．National Day

B．Teacher's Day

C．Dragon Boat Festival

D．Spring Festival