In bacteria and other organisms, .
A.it is the DNA that provides the genetic information
B.which is the DNA that provides the genes
C.the DNA providing the genetic information
D.the DNA that provides the genetic information

Recent evidence makes it possible for the investigators to conclude that .
A.some paintings by Rembrandt were faked
B.some paintings by Rembrandt must be faked
C.Rembrandt was attituded to some paintings
D.some paintings by Rembrandt to be faked

What can be inferred by the phrase “Legend has it” in line 1?
A.Most history book include the story of the train.
B.The story of the train is similar to other ones from that time period.
C.The driver of the train invented the story.
D.The story of the train may not be completed factual.

What can be inferred about the “Great American Desert” mentioned in line 7?
A.Many had settled there by the 1860’s.
B.It was not originally assumed to be a fertile area.
C.It was a popular place to raise cattle before the Civil War.
D.It was not discovered until the late 1800’s.

John: "Do you think that we should use public transportation to protect our environment?" Laura. " _______"
A.Yes, it’s an absurd idea
B.There’s no doubt about it
C.Of course not. You bet
D.Well, that’s very surprising

If you had asked him, he _________ helped you to solve the problem.
A.will have
B.ought to have
C.should have
D.would have

“Today’s my 20th birthday.” - “_________”
A.Take care!
B.Many happy returns!
C.Have a good time!
D.I don’t understand.

Luisa does a full-time job and _____________.
A.looks after also the house
B.looks after the house either
C.looks after the house too
D.also looks after the house

Mr. Nixon refused to answer the questions on the_____________that the matter was confidential.
A.reasons
B.excuses
C.grounds
D.foundation

Can you list the problems ____ poor and ____ countries?
A.facing/ overpopulation
B.facing/overpopulated
C.face/ overpopulated
D.facing/overpopulating