English has become a communication _____ for people from different countries

A.hang on

B.draw on

C.wait on

D.count on

A. Approaches to the commercial use of computers.

B. Conveniences brought about by computers in business.

C. Significance of automation in commercial enterprises.

D. Advantages of credit cards in business.

A. should encourage them to read before know the meaning of the words they read

B. Should not expect too much of them

C. Should achieve a balance between pushing them too hard and leaving them on their own

D. Should create as many learning opportunities as possible

A. rather angry with her

B. afraid other people would hear her crying

C. not sure whether he should dismiss her or not

D. trying to make a decision

A. a lie that is completely unbelievable

B. a lie that is told with a good will

C. a lie that is always believable

D. a lie that often has an evil purpose

A. a shop assistant

B. the store manager

C. the manufacturer

D. a public organization

A. limited exposure to them does little harm to people's health

B. the present is more important for them than the future

C. the danger does not become apparent immediately

D. humans are capable of withstanding small amounts of poisoning

A. Man appears indifferent to what happens in nature.

B. Man acts as if he does not belong to nature.

C. Man can avoid the effects of environmental pollution.

D. Man can escape his responsibilities for environmental protection.