单项选择题

______ they must learn in a course is not provided in the classroom.

A. Many things


B. Much of what
C. So much


D. All of which
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单项选择题
The chief reason for the population growth isn’t so much a rise in birth rates ______ a fall in death rates as a result of improvements in medical care.
A. and
B. as

C. but

D. or
单项选择题
Whatever the causes, the English by the end of the year 2050 will have been more widely spoken and written than any other language ______.
A. ever was


B. had ever been
C. would ever be


D. has ever been
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