An awful accident , however, occur the other day.
| A．does |
| B．did |
| C．has to |
| D．had |
Last winter, many places of southern China were struck by heavy snowstorms, _____ more than 120 people were killed.
| A．from which | B．in which | C．at which | D．for which |
Havingbeenattackedbyterrorists,________.
| A．doctorscametotheirrescue | B．thetallbuildingcollapsed |
| C．anemergencymeasurewastaken | D．warningsweregiventotourists |
A new ______ to teaching languages is being used here, and it has turned out to be very helpful to the students.
| A．approach | B．means | C．method | D．way |
The Olympic mascots are the Olympic flame, the panda, the Tibetan antelope and the swallow, _______ a close group of friends.
| A．to represent | B．representing | C．represented | D．represent |
I saw Tom ______ into the classroom without ______.
| A．slide; found | B．sliding; find | C．to slide; being found | D．sliding; being found |