I’m worried about the coming driving test .— Take it easyYou ______ hard and I am sure you can pass it

You didn’t know ______ I wanted to see you. It’s a year since I last saw you.

He gave us a lot of help when we were in trouble, but we have nothing to give him ________.

weather is fine, we’ll go If ______,______

As we all know, great changes _______ in China in the past thirty years.