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问题

In the past decades, sea ice ______ in the Arctic as a result of global warming.

A:had melted
B:has been melting
C:melted
D:is melting
正确答案是:
标签: decades , past , sea
同类题型

Mum, why not having hamburgers instead of dumplings? —-Good idea.

Two bottles of apple juice, please. — Only one bottle is left. Would you like to have ___________, sir?

Excuse me. Where is Lily? —Oh, she___ the volleyball match on the playground when I saw him just now.

The teacher class when I the classroom at ten o’clock yesterday morning.

It’s half past four. School is over. The children___ games happily on the playground.

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