In paragraph 2, the author explains the concept of vasodilation and vasoconstriction by
A.describing the evolution in our ancestors
B.giving an example of heat loss in the extremities
C.comparing the process in humans and animals
D.identifying various types of insulation
You can drive your own car __ you have passed the driving test.
A.even if
B.as if
C.now that
D.so that
Why does the author of this passage use the word "apparently" in paragraph 5?
A.He is not certain that the author of Beowulf was a Christian.
B.He is mentioning facts that are obvious to the readers.
C.He is giving an example from a historical reference.
D.He is introducing evidence about the author of Beowulf.
A.Juice.
B.Tea.
C.Coffee.
D.Beer.
He checked his car carefully lest it __ on the way.
A.breaks down
B.would break down
C.should break down
D.broke down
Two new bridges __ on the river by the end of next year.
A.will be built
B.will have been built
C.are going to be built
D.have been built