May I speak to John— Sorry, he _______ Japan. But he will be back in two days.

Jim was angry you.— Yes. He said he didn’t want to be friends with me any more.

Who’s that man in our classroom It ________ be Mr.Brown. He is much taller.— You mean the man in white He is an exchange studentfrom England.

will you do during the summerholiday”— “I don’t know, but it’s high time _____something.”

Trees are very important to our environment. They can _____ wind from blowing the earth away.