．_________the fact that doctors have warned that smoking causes cancer, people still keep on smoking.
| A．Due t o | B．Thanks to | C．In case of | D．In spite of |
While building a tunnel through the mountain, _____.
| A．an underground lake was discovered | B．workers discovered an underground lake |
| C．there was an underground lake discovered | D．a lake was discovered underground |
— I wonder if I could use your phone for a while?
— _____.
| A．It’s a good idea | B．Why not? Do it for yourself |
| C．Of course. Go ahead | D．It’s my pleasure |
Only when the war was over_______ to his hometown.
A. did the young soldier return B the young soldier returned
C. returned the young soldier D the young soldier returned
He is an hour late by now．He last night．
| A．must stay up | B．should stay up |
| C．should have stayed up | D．must have stayed up |
I don’t know how they ____the first couple of weeks after the strong earthquake.
| A．got around | B．got through | C．got over | D．got up |