Not until the teacher explained the importance ofgetting up early ______ we promise to come early.

When we visited Hainan again ten years later, we found it changed so much that we could hardly _______ it.

How’s the weather tomorrow—I don’t know if it ___________ tomorrow.—Well, if it ___________, I won’t go out with you.

What is your –The Tiger.

How far is the factory from here—It’s about 4 kilometres _______.