I would have come earlier, but I _____ that you were waiting for me．
| A．didn’t know | B．hadn’t known |
| C．haven’t known | D．wouldn’t have known |
The earthquake _____ fear _____ his heart.
| A．hit; in | B．beat; into | C．knocked; into | D．struck into |
_____ he graduated from college, he became a success in business.
| A．Short | B．Shortly | C．Shortly after | D．short after |
Scientists are hoping for a _____ in the search for a cure for cancer.
| A．breakthrough | B．break | C．deal | D．progress |
____ news came _____ an unknown disease was spreading in the area.
| A．Disturbing; that | B．Disturbed; which |
| C．Disturbing; which | D．Disturbed; what |
They have no idea at all ______.
| A．where he has gone | B．where did he go |
| C．which place has he gone | D．where has he gone |