You must be the ___ bird in the world.A.pretty B.prettiest C.prettier

you must be ___!(kid) You must be the ___ bird in the world.A.pretty B.prettiest C.prettier 完形填空.When you are in England,you must be ve完形填空.When you are in England, you must be very ___ in the streets. You must be careful to drive the car.改为同义句___ ___ ___to drive the car. you must be joking改为同义句 you ___ ___ ___! You must ___(be) careful____(红绿灯处） You must ___(be) careful (在红绿灯处） All the homework you hand in must be your own ___.A.work B.family C.gym D.hallway She must be ___ when she hears the new. The book must be Jim's.(完成反义疑问句) The book must be Jim's,___ ___? ___ of the earth must be ___ to the earth.(friend) 词形变化 the ___(heath)you will be 1.He ___ Mr.Black.He is taller.(用can't,can't be,must,must be,don't have to,1.He ___ Mr.Black.He is taller.(用can't,can't be,must,must be,don't have to,needn't其中的一个填空,请说明一下选这个词的理由)2.You can _______ the teacher You must be careful with your handwriting.(改为祈使句）___ ___ with your handwriting. We must ___(be) careful. you must be ____(care)when you cross the street. you must be careful when you （ ）the street Lily,you must finish ___(write)your report beforLily,you must finish ___(write)your report before the meeting begins