Later, these rocks proved that ___ in the distant past the Antarctic was covered

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Later, these rocks proved that ___ in the distant past the Antarctic was covered by plants.

A．at one time

B．at a time

C．at times

D．at the same time

答案

解析

略

举一反三

Today some people call Amsterdam the “City of Bicycles”____ the convenience for bicycles there.

A．while

B．before

C．because

D．because of

题型：不详难度：| 查看答案

_____, about forty people travel in one bus, while the same number occupy thirty-three cars.

A．On average

B．According to

C．In average

D．Instead

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How can you persuade them ___ the advantages of solar cars?

A．of

B．to

C．into

D．out of

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Marco, ____, was amazed by how beautiful and powerful China was.

A．by turn

B．in turn

C．with turn

D．in return

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The hike costs ￡2,500 ____all fights and accommodation.

A．including

B．include

C．included

D．to include

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