—I don’t know________next.—You’d better finish your homework first.A.what to doB.how to doC.when to do
---Mum, can I go to the zoo with Linda? ---When your homework _______, you can.
I can’t forget the time _______ the earthquake happened in Yushu.
Could you please tell me _______? I’ve lost her address.
We’ll go for a picnic if it _______ this weekend.
It’s very hot here. Why not _______ your coat?