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[单选题]

Scientist think that the continents____always where they_____ today.

A.aren’t; are

B.aren’t; were

C.weren’t; were

D.weren’t; are

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D、weren’t; are

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A scientist, together with his assistants, ________to help in this work.

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第2题
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The scientist is not a person who gives the right answers ()the one who asks the righ

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第3题
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B、Brazils standing in the international market

C、the October presidential election

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B、Brazil government should crack down on the smuggling of genetically modified seeds.

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第4题
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第5题
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第10题
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第11题
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