Whoever invented______ wheel is believed to have made______ most useful invention in______ history.
| A．a; the /; | B．the; the; / | C．the;. /; / | D．a; a; the. |
Filled with anger, he didn’t shout, but just ___ silently at me.
| A．looked | B．stared | C．glared | D．glanced |
Rather than ___ on a crowded bus, he always prefers ___ a subway.
| A．ride; ride | B．riding; ride |
| C．ride; to ride | D．to ride; riding |
If you keep working so hard, I think you will succeed____.
| A．in time | B．on time | C．at times | D．at a time |
He arrived at the station, ______that the bus_____ off .
| A．finding; had | B．found; had |
| C．only to find; had been | D．only to find; has been |
Do you mind ____smoking here?
| A．my | B．me | C．I | D．A and B |