. When he was working there he caught a serious illness from _____ efforts he still suffers.
| A．which | B．that | C．whose | D．what |
The police are ______ to conclude that the cause of fire was a cigarette end.
| A．probable | B．possible | C．maybe | D．likely |
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 |