Some of my classmates don’t like math because they think it’s boring.— I don’t like it, _____. I think it’s too difficult.

While he ________ his homework , his mother came in.

Excuse me, could you tell me where _______?—Sure, sir. You can try www.taobao.com.

I’ve never been to a place that before.[ ]

If the kids stay indoors all the time and get no exercise, they _________ weak.