Which materials can be thrown into the sea _______on the nature of them?
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A
depended
B
depending
C
to depend
D
depends
推荐题目
A few days after the interview，I recevied a letter ________ me admission to the university.
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A
offering
B
offered
C
having offered
D
to be offered
The long-lasting war, filled with blood and deaths, ended in people’s sadness, ______ no result.
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A
having produced
B
to produce
C
producing
D
produced
With difficult problems ___, the president feels relaxed now.
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A
settled
B
settling
C
to settle
D
being settled
She is said _____in the United States for four years before she came back to work in our company.
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A
to study
B
to be studying
C
to have studied
D
studying