I was standing atop a North Carolina mountain, the afternoon sun______like golden lace through the trees．
| A．threaded | B．threading | C．being threaded | D．was threaded |
I won't tell the student the answer to the math problem until he on it for more than an hour.
| A．has been working | B．will have worked |
| C．will have been working | D．had worked |
---Will you tell us what you saw in the room?
---Sure. _______ inside were lots of strange creatures with white skin and large black eyes.
| A．Having stood | B．To stand |
| C．Being standing | D．Standing |
I’ll never forget the time I taught English at the village school as a volunteer, has a great effect on my life.
| A．when ; that | B．that ; when |
| C．when ; which | D．which ;that |
“Don’t worry. We will the case as soon as possible.” the police officer said to the young lady.
| A．look after | B．look into |
| C．look out | D．look up |
She didn’t have the ________ to walk any further, because she had walked for a long distance.
| A．energy | B．power | C．strength | D．support |