1.They'll be taking some exercise.
2.This house must be at least 1oo years old.
3.The bus must have gone .
4.He can't have remembered.
5.You must be joking.
6.Maybe he has too much money.
7.I guess he'll fail the exam.
8.They're predicting a good harvest this year.
9.There is much probability that he can be saved.
10.I suppose he could have gone to Europe.
A:Dear,can you drive me to the clinic?
B:I'm afraid I can't .
B:Well, my car won't start.I don't know what's the matter with it.
A:Could it be the battery?
B:No, I don't think it could be.I checked the battery two days ago.It must be other problems.
A:Well, I suppose it could be the gas.
B:No,there is plenty of gas.I filled it up yesterday.
A:Perhaps it's the starter then?
A:What's this, I wonder?
B:I'm not sure.Let me have a look.....It could be a coffee grinder.
A:A coffee grinder?
B:Yes,it must be used for grinding coffee beans.
A:Oh,that would be very useful.
A:Have you seen that house?
B:Yes,it looks interesting.
A:You're right.I love it very much.
B:It must be old.
A:At least more than 100 years old.
B:Let's enter it!
A:I can't open the door.
B:It must be locked.
A:Let me ask the old woman in that reception office.
B:She can't answer you.
A:She must be deaf.
B:It must be a haunted house.Are you frightened?
A:Frightened?You must be joking.
A:What was that noise?
B:It was the pilot putting the wheels down.We must be coming into land.Are you frightened?
A:Frightened?You must be joking!
A:John's very late.Do you think he's coming?
B:Well, it doesn't seem like it.He must have forgotten.
A:I suppose you're right.He can't have remembered.
A:Watch out!You'll hit that car if you're not careful.
B:Oh no,I won't .But we will have an accident if you don't stop shouting.
A:You see.I told you you'd hit him if you weren't careful.
B:Oh,shut up,will you?It was all your fault.If you'd kept quite this would never have happened.
A:Oh,so it was my fault,was it?If I hadn't warned you in time it would have been much worse.
The little boy,Johnnie,had been up with a packet of mints,and said he wouldn't go out to play until the post card came."I guess you'll get lots and lots of presents,"he said."I did last week when I was six."
What would she like?A pair of slippers perhaps.Or a new cardigan.A cardigan would be lovely.Blue's such a pretty color.Jim had always liked her in blue.Or a table lamp.Or a book,a travel book,with pictures,or a little clock,with clear black numbers.So many lovely things.