问题

_______ is estimated that 25 million school lunches are sold each day.[ ]

A: It
B: That
C: This
D: As

正确答案是：

同类题型

o my,I’m unable to accept your kind invitation.

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下列各句中，表达得体的一句是

I have a good friend wouldlike to speak to you.

My grandfather _______ ten years ago.