I didn’t know when he     back. He said he would call me when he     home.

．— I wonder if you _______ a picnic tomorrow.— Yes. But if it ______, we’ll visit the museum instead.

We’ll go for a walk if it ___  __ tomorrow.

While Helen __________ the guitar, her mother came in.

Golf is rapidly becoming more popular. Near some towns and cities new courses are being built in ________.