How long will you stay here—I don’t know. ________.

Tom wants to know if you will have a picnic tomorrow.—Yes. But if it ______, we’ll play chess instead.

a work of ____ , we can’t judge itsvalue by appearances.

_______ it rain tomorrow, we would stay at home.

Tom is one of _________ students in my class . — Yes . He usually prefers _________ at home toplaying outside .