A.if
B.as soon as
C.until
D.or

A.I have  
B.have I  
C.I did  
D.did I

A.nor 
B.or
C.but 
D.and

A.less intelligent 
B.the most intelligent 
C.intelligent as well 
D.as intelligent as

A.Congratulations! 
B.Are you sure of that? 
C.What a pity!  
D.It's terrible.

A.look for
B.look on
C.look after   
D.look up

A.for
B.in 
C.into
D.to

A.good for 
B.good at 
C.well at
D.well in

A.How careless he was! 
B.I'm sorry to hear that.
C.That's too bad.
D.I'm bad to hear that.

A.had better to 
B.don't 
C.must not
D.don't have to