问题

The children very quiet；I wonder what they up to

A:were； are being
B:are being；are
C:are；do
D:are being；do

正确答案是：

同类题型

Mary worked here as a ______secretary and I ended up getting a full-job with the company.

Many people say they have seen Unidentified Flying Objects, which, they believe, ________alien spaceships.[ ]

I think it’s impossible for us to work out the plan in just two days. It’s too difficult.—You’re right. We can’t be _______ careful while working on it.

I feel so excited！At this time tomorrow morning Ito Shanghai

. You can’t imagine _______ when they received those nice Christmas presents.