_______ (51)
A.can be
B.are
C.were
D.would be

"If I were you, I'd ask the teacher for help" he said.
A.He suggested asking the teacher for help.
B.He said if he was me, he would ask the teacher for help.
C.He advised me to ask the teacher for help.
D.He told me that he'd ask the teacher for help.

The tour guide suggested that the visitors wear a red cap so as not to be lost.
A.According to the tour guide, wearing a red cap will prevent the visitors from getting lost.
B.The tour guide insisted on the visitors’ wearing a red cap.
C.The tour guide was wearing a red cap so that the visitors could see him easiỉy.
D.The tour guide always wears a read cap so as not to loose the visitors.

Is it necessary to meet the manager at the airport?
A.Did the manager have to be met at the airport?
B.Does the manager have to be met at the airport?
C.Is the manager had to be met at the airport?
D.Does the manager have to meet at the airport?

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.
Mr Smith is having lunch in a restaurant. ~ Mr Smith "Could you bring me some water?" ~ Waiter: "_______"A.No, thanks.
B.Of course you can.
C.I'm afraid not.
D.Certainly, sir.

What is true of Lake Vostok?
A.It is beneath a thick slab of ice
B.It is completely frozen
C.It is heated by the sun
D.It is not a saltwater lake

It can be inferred from the passage that the ice would not be flat if ______
A.radio waves were not used
B.Antarctica were not so cold
C.There were no lake
D.the lake was not so big

Which of the following is closet in meaning to "frigid" in paragraph 1?
A.Rarely recorded
B.Extremely cold
C.Never changing
D.Quite harsh

The word "microbes" in paragraph 3 could be best be replaced by which of the following?
A.Pieces of dust
B.Tiny organisms
C.Rays of light
D.Trapped bubbles

I have no idea who will come to the party.
A.It's not a good idea to say who will come to the party.
B.Who will come to the party is not a secret.
C.Who will come to the party is known.
D.I doir t know who is invited to the party.