Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The temperature ________ takes place varies widely from material to material.
A.at which melting
B.which melting
C.which they melt
D.at which they melt

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
This is the first time James _________ a strike.
A.joins
B.joined
C.has joined
D.has been joining

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Since Elgin was fired from the university, he has been forced to work hard to earn his _______.
A.tuition
B.debt
C.livelihood
D.finance

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
If oil supplies run out in 2050 then we need to find ______ energy sources soon.
A.alternate
B.alternating
C.alternative
D.altering

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
If it had not rained last night, the roads in the city ______ so slippery now.
A.would not be
B.must not be
C.could not have been
D.would not have been

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
It seems that you are right, ______?
A.doesn’t it
B.do you
C.aren’t you
D.are you

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Valentine’s Day, ______ from Roman, is now celebrated all over the world.
A.originate
B.originating
C.to originate
D.originated

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The production of tin ore in the United States is relatively insignificant, ____ less than one hundred tons annually.
A.amount to
B.in the amount
C.amount to it
D.to the amount of

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Even though they don’t agree with what’s happening, they’re too ____ to protest.
A.apathetic
B.subdued
C.quiet
D.outgoing

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
If you like asking, there’s a ski ____ under an hour’s driving from Madrid.
A.resort
B.station
C.place
D.port