Only then ______ how much damage had been caused.
| A．had she realized | B．she realized | C．did she realize | D．she had realized |
She did not take the advice that she ___ at rush hour, so she got lost.
| A．not travel | B．did not go | C．should travel | D．goes shopping |
In the last ten years she _____ like this; she is killing her health.
A. works b. has been working C. worked D. is working
The policemen are searching for the ____car on the highway.
| A．damaging | B．damaged | C．destroying | D．destroy |
Driving the halfway I _____ my car was out of gas.
| A．noticed | B．find | C．found out | D．saw |
The animal of this kind is _______; we’d better ________.
| A．dangerous; keep away | B．is danger; keep away from it |
| C．dangerous; keep away from it | D．in danger; keep away |