－My parents our home for a few hours when I arrived. I didn’t meet them.－You could call them if you wanted to know where they were.

Hi, I’m Xiao Li. I’m very glad to friends_____ you.—Me, too. I’m Xiao Wang.

Nowhere else, as his mother told us, __________ except the cabin in the backyard

Ilike getting up very early in summer. The morning air is so good ______.

We are confident that the environment ______ by our further efforts to reduce pollution.