It is essential that these application forms______back as earlier as possible.
A. must be sent
B. will be sent
C. are sent
D. be sent
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All this leads to a population in the twenty-first century that is smaller______feared few
A. than was
B. that was
C. than that
D. it was
A．reelingB．strugglingC．runningD．passing
A. reeling
B. struggling
C. running
D. passing
What is the characteristic of Twitters ads？
A. Twitter"s ads are actually hidden among ordinary tweets.
B. Twitter prefers to use big glossy images to attract people"s attention.
C. Twitter"s ads are usually sponsored by big companies like Starbucks
D. After three years" trial, Twitter has decided to change its ads style.
What information does not provide in the first paragraph？
A. Peru"s sugar industry was very successful in 1960s.
B. Some sugar estates on the country"s north coast used to be government-owned.
C. During the period of government owned, the sugar industry underwent a period of development.
D. There must be revolutions in 1960s.
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