The city was difficult ________, _________ was defended by an army of 6,000 men.
| A.to be taken; which | B.to take; that | 
| C.to take; which | D.to be taken; that | 
Most children in Great Britain are educated at the public_____.
| A.expense | B.charge | 
| C.pay | D.credit | 
Being a capable woman,Nancy _____ to be considered as merely a housewife.
| A.agrees | B.admits | 
| C.refuses | D.rejects | 
You have broken your promise;you______painting the house long ago.
| A.could have finished | B.had better finish | 
| C.must have finished | D.should have finished | 
Wow! Look at the man and his horse ________are running down the road.
  A.which B.that C.who  D where
A cool rain was falling_________with snow causing heavy traffic.
  A.mixed B mixing C.to mix  D.having mixed