There have been many achievements since the country carried out economic reforms, ________?
A.don't there        
B.haven't they   
C.haven't there  
D.don't they

You could ride a bicycle when you were five, ___________?
A.hadn't you        
B.didn't you      
C.weren't you    
D.couldn’t you

Nam wishes he had worked hard last year, __________?
A.hadn't Nam       
B.hadn't he        
C.doesn't Nam   
D.doesn't he

You were driving home when you saw Lan, _________?
A.didn't you         
B.weren't you   
C.wouldn't you  
D.hadn't you

The teacher asked you if you finished your homework that day, __________?
A.hadn't he          
B.didn't he        
C.didn't you       
D.hadn't you

We should call Rita, _________?
A.should we        
B.shouldn't we  
C.shall we         
D.should not we

These books aren't yours, ________?
A.are these          
B.aren't these    
C.are they          
D.aren’t they

When you cross the road, be careful of ___ .
A.the traffics
B.the traffic
C.a traffic
D.traffics

The essayist William Hazlitt was one of the most distinguished men of ___ .
A.course
B.leisure
C.late
D.letters

A notice on the gate said "Beware ___ the dog".
A.for
B.to
C.of
D.from