12. -- Why didn’t you come to see the film with your parents last weekend?
-- I _____ my lessons for the month- exam.
| A．was preparing | B．prepare | C．prepared | D．have prepared |
Xi’an was the last city ______ he visited when he came to China.
| A．where | B．which | C．that | D．in which |
The music ______ she is dancing sounds beautiful.
| A．by which | B．to which | C．with which | D．at which |
______ time ______, what the scientist said finally proved to be true.
| A．With; went by | B．With; going by |
| C．As; goes by | D．As; going by |
Mary never does any reading in the evening, __________.
| A．so does John | B．John does too |
| C．John doesn’t too | D．nor does John |
— Where is the panda?
— It __________ by the doctor now.
| A．was being examined | B．is being examined |
| C．will be examined | D．has been examined |