My native town is quite different from ___ it was 20 years ago.
A.what   
B.that     
C.as
D.which

According to the passage, many parents would like their children to__________
A.have less home work
B.do more home work
C.have no homework
D.do their homework at school

I’ll come and see you…….I leave for Moscow.
A.even though   
B.so
C.because
D.before

It is stupid to do that ___ it is quite unnecessary.
A.as
B.but
C. although
D.so

How old do you have to be ___ you can drive a car?
A.when
B.until    
C.before
D.since

I copied my notebook ___ he wrote on the blackboard.
A.however
B.whatever
C.that
D.whoever

I usually take sandwiches for my lunch, but ___ and then I go to a cafe.
A.now    
B.once    
C.again
D.ever

Time ___ time she was warned of the consequences of her action.
A.and
B.until    
C.after    
D.after

Jake is a very good student of languages. His brother Micheal, ___, has never been able to master another language.
A.therefore
B.by the contrast
C.on the other hand
D.whereas

The children won’t go to sleep ___ we leave a light on outside their bedroom.
A.except
B.unless
C.otherwise
D.but