–Who is the tallest boy?–It ______  be John. Because John is of medium height..

You ______ write the poem down. Our teacher will give us a copy.

–Look! Someone is cutting a tree on the moon.–It _______ be true, Granny. Our teacher says there is no air there.

 –Look! The boy is running fast! –He might ______ to catch a bus.

 ---Good morning. I’ve got an appointment with Mr Smith in his office. ---Morning. You ________ be Mr Jones. This way, please.

I hope you __________ to my birthday party.

-Shall I take my swimming suit? -No, you  ______. We will just go hiking on the mountain.

 Today is Wednesday. He _______be at home. He _______be at school.

The young trees should ______well as often as possible.

This notebook        Lucy’s. Look, her name is on the book cover.

We ___________to speak aloud in the public place.

This book _______ be Tom’s. Look! His name is on the cover.

 This book  Jenny’s. Because her name is on the cover of the book.

—Who is speaking there? —It        be Uncle Li. He has gone to Shanghai.

You _____ to the meeting this afternoon if you have something important to do.

She ______ know the answer, but I’m not sure.

—_______ I borrow your English book?—Yes, of course you _______. 

---Be polite . You _____ talk to the old like that !  ---Sorry , I won’t .

 ---- Have you ________ Tim to go with us'? ---- No. He wants to but he ________ care for his sister because his parents are busy.

—Isn’t that Ann’s husband over there? ---No, it _______be him. I’m sure he doesn’t wear glasses.