问题

Why does the river smell terrible? —- Because large quantities of water______

A:have been polluted
B:has polluted
C:has been polluted
D:have polluted

正确答案是：

同类题型

She gave me half, and _____the other half for her husband

Would you mind my ______ her to the partyWould you mind not ______ to the party

（2017·江苏卷·单项填空） He hurried home, never once looking back to see if he ____________.

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ouch your eyes, nose by skin and can_______ the virus more easily.