If a consumer wants a quick settlement of his problem, it's better to complain to _____.

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.

A.It is perfect.

B.I do have some opinion about it.

C.On the whole it is good

D.I have no idea about it.

 A.I feel sorry

B.What a shame

C.It doesn't matter

D.Do come next time

A. available

B. desirable

C. enormous

D. numerous

A. have we arrived B. did we arrive C. had we arrived D. shall we arrive

A. what B. which C. that D. where

A. effect B. affect C. differ D. infer

A. taken B. of taking C. to take D. taking

A) undergone B) developed C) involved D) undertaken