This passage as a whole is about __________
A.discovering natural gas
B.finding petroleum
C.using natural gas and petroleum
D.natural gas and its use

Many countries share the view that drastic measures must be taken to stop the pollution of the seas.
A.The pollution of the seas can only be prevented provided that many countries follow the same policy.
B.By putting into practice a series of precautions, it is generally believed that the pollution of the seas will be prevented.
C.A lot of countries agree that it is essential to take strong action to put an end to the pollution of the seas.
D.The seas will, it seems, continue to be polluted unless this agreement is accepted by a majority of the countries.

As Jane and I are going to Leeds by car, why don’t you join us?
A.Will you come to Leeds with Jane and me if we decide to take the car?
B.How about going to Leeds with Jane and me since we’re taking the car?
C.If you and Jane decide to go to Leeds, couldn't we go by car?
D.Why don't you want to go to Leeds by car with Jane and me?

I had no idea Clark spoke French until we went to Bordeaux.
A.I first realized that Clark knew French when we were in Bordeaux.
B.Before we went to Bordeaux, Clark had never tried to speak French.
C.While we were travelling to Bordeaux, Clark suddenly stared to speak French.
D.It was difficult to understand French that Clark was speaking in Bordeaux.

Of all the decisions a free people must face, the question of war or peace is the most crucial.
A.A free people is never confronted by a more momentous choice than that of war or peace.
B.The most critical choice that a free people is ever called upon to make concerns the issue of war or peace.
C.The choice of war or peace is a critical one, but all fee people do, on occasion, have to face it.
D.When confronted with the choice of war or peace, free people realize it is the most momentous of all issues.

James could have been a classical musician if he’d continued his cello lessons.
A.It was only because James stopped taking lessons on the cello that he was unable to become a classical musician.
B.Originally, James had wanted to become a classical musician, and so he took cello lessons for a time.
C.It was the cello lessons that he took for a long time that enabled James to become a classical musician.
D.James never became a classical musician, but he did continue taking cello lessons nonetheless.

Albrecht Durer created a fairly good picture of a rhinoceros without even having seen one.
A.Despite not having seen a rhinoceros, Albrecht Durer created a pretty good picture of one.
B.Had he not looked at a rhinoceros first, Albrecht Durer wouldn’t have made a quite good picture of one.
C.Albrecht Durer didn’t even bother to look at a rhinoceros before he made his excellent picture of one.
D.Before Albrecht Durer saw a rhinoceros, he had already made a pretty good picture of one.

In the third paragraph, what does the term “wild card” mean?
A.An unknown card in a card game.
B.An unknown item in the scientists’ calculations.
C.A large amount of acid dust.
D.A, B, and c are incorrect.

It can be inferred that the word “retain” in paragraph 3 is closest in meaning to _________ .
A.hold
B.lose
C.increase
D.need

Choose the best answer for the following sentences:
I shouted in order that I could warn everybody of danger.
A.I shouted with a view to warn everybody of danger.
B.I shouted so that warn everybody of danger.
C.I shouted with the aim of warn everybody of danger
D.I shouted for fear that nobody knows of danger.