-　Look,　Sue　is　over　there.

    -　That　____　be　her.　She　is　in　Canada　now.

    A.　mustn’t　　　　B.　can’t　　　　C.　needn’t　　　　D.　won’t

— The old teacher used to be strict with them, ________ she?

— Of course, she did.

A.　 didn’t　　　　　　　　　 B.　 did　 　　　　　　　　　 C.　 used　　　　　　　 D. was

— Must I finish my homework?

— No, you ________. You can do it tomorrow.

A.　 mustn’t 　　　　　 B. must　 　　　　　　　　　 C.　 needn’t 　　　　　　 D. need

　　Jim 1 to borrow a book from a new library （图书馆）.He comes to the library 2 Jack. They can't see 3 assistants （图书管理员） there, but only some robots （机器人） standing there. Then Jim 4 to the robot, “Hey, give 5 .”But the robot 6 .

　　“What's wrong 7 this robot?” he asks Jack.

　　Then Jack tells him, “When you want to borrow something from somebody, you must 8 'please' first.”

　　So Jim says, “Will you please give the book to me?” Mr Robot brings （带来） him the book. But again, Jim can't take the book out of the robots hand.

　　Jack says, “You must say ' 9 ' before you take the book.” So Jim says, “Oh, thank you very much, Mr Robot.”

　　The robot smiles （微笑） and 10 .