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.

The paragraph following the passage most probably discusses
A.Problems with satellite- borne radar equipment
B.the harsh climate of Antarctica.
C.further discoveries on the surface of Antarctica
D.ways to study Lake Vostok without contaminating it

Not until all their demands had been turned down did the workers decide to go on strike for more welfair.
A.rejected
B.sacked
C.reviewed
D.detected

The passage mentions which of the following as a reason for the importance of Lake Vostok?
A.It may contain uncontaminated microbes
B.It can be studied using radio waves
C.It has already been contaminated.
D.It may have elevated levels of ultraviolet light.

A.singer
B.future
C.reply
D.answer

A.interesting
B.photocopy
C.difficult
D.effective

She denied having stolen his mother's money.
A.refused
B.admitted
C.insisted on
D.reminded