题目内容
____ we know now, oceans cover more than 70 percent of the earth.
A. That B.Which C.As D.What
C
解析:
as引导非限制性定语从句。as从句中的谓语常常是: be said, be known, be reported等。
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题目内容
____ we know now, oceans cover more than 70 percent of the earth.
A. That B.Which C.As D.What
C
as引导非限制性定语从句。as从句中的谓语常常是: be said, be known, be reported等。