--Where is Tom?

--Where is Tom?
---He hasn’t come to school today.I think he _ __be ill.
A.has to B.should C.may D.need
11.---___ I try this shirt on,please?
---Certainly,please.
A.Do B.May C.Must D.Need
12.John __ __come to see us tonight,but he isn’t very sure yet.
A.may B.can C.has to D.must
13.---Is the boy by the window your brother?
--- It ___ him.
A.maybe B.may be C.would be D.need be
五、 must,have to的用法
14.After a long walk,the old man ___be tired now.
A.can B.must C.has to D.need
15.You ____wash your hands before meals.It is good for your health.
A.may B.can C.have to D.must
16.This book ___Lucy’s.Look!Her name is on the book cover.
A.must be B.may be C.can’t be D.mustn’t be
17.---____I finish the work today?
---No,you needn’t.
A.Must B.May C.Can D.Need
18.---Must I return the book this morning?
---No,you ____.But you ____return it before supper.
A.needn’t; must B.mustn’t; can
C.mustn’t; may D.can’t need
19.An old lady was crossing the street in front of my car and I ____ stop very quickly.
A.must B.have to C.has to D.had to
六、 need的用法
20.You _____ worry about your son.He will get well soon.
A.needn’t B.can’t C.mustn’t
21.---Must I write all the words down?
---No,you ___.
A.mustn’t B.can’t C.won’t D.needn’t
22.It’s a fine day today.You ____take a raincoat with you.
A.mustn’t B.don’t need C.needn’t D.can’t
七、 had better的用法
23.You’d better ____more water,Tom.It’s good for your health.
A.drink B.drinking C.to drink D.drank
24.You’d better ____in the room.
A.not to smoke B.not smoking
C.not smoke D.to smoke
25.It’s cold outside.You’d better ____your coat.
A.not to take off B.not take off
C.to not take off B.don’t take off

11.B
12.A
13.B
五
BDAAAD
六
ADC
七
ACB
must 主动状态 have to 客观状态
太多了,就不详解了啊