Do you always have to say the first thing that pops into your head. ___ you think once in a while before you speak?
A.Can not
B.Don't
C.Can't
D.Why

You ___ forget to pay the rent tomorrow. The landlord is very strict about paying on time.
A.couldn't
B.don't have to
C.mustn't
D.needn’t

The machine ___ on by flipping this switch.
A.could be turning
B.can be turned
C.may turn
D.need turning

Mr. Brown is bored__________ doing the same job for too long.
A.at  
B.in 
C.of 
D.with

When it turned out that Alice ___ to hospital before July, I phoned the agency  to cancel the bookings. I didn’t want to risk losing the money, in case she did.
A.needed have gone
B.might have to go
C.could have gone
D.needed to have gone

You ___ take along some cash. The restaurant may not accept credit cards.
A.had better
B.has to
C.can
D.dare

At first, my boss didn't want to hire Sam. But, because I had previously worked with Sam, I told my boss that he ___ take another look at his resume and reconsider him for the position.
A.has to
B.must 
C.ought to
D.will

If I had gone white water rafting with my friends, I ___ down the Colorado River right now.
A.would be floating
B.would have floated
C.would float
D.would have been floated

___ we move into the living room? It's more comfortable in there and there's a beautiful view of the lake.
A.Will
B.Must
C.Shall 
D.Dare

I'm not as successful ___ she is.
A.as
B. like
C.than
D.then