问题

I don’t think one country can solve the problem of pollution alone, _______
A:do I
B:may I
C:can it
D:can’t it;
B:may I
C:can it
D:can’t it;
正确答案是:
同类题型
be fairly cheap to buy, but you’ve got to ______the money you’ll spend on repairs
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You look upset. What’s the matter?—I had my proposal ___________ again.