A cool rain was falling, _____ with snow, causing heavy traffic．
| A．mixing | B．mixed | C．to mix | D．having mixed |
— Well, Jane has many advantages, too.
— Oh, yes. _______ others are weak, she is strong.
| A．If | B．When | C．Though | D．Where |
There is no _______ in persuading him to give up computer games.
| A．doubt | B．point | C．wonder | D．value |
Why does your brother _______ a sad look on his face these days?
| A．bring | B．wear | C．show | D．hold |
I had meant to meet you at the airport this morning, but I was too busy for I_______ a report.
| A．wrote | B．have written | C．was writing | D．had written |
Frankly speaking, ______of them knew what the other was doing that morning.
| A．none | B．neither | C．some | D．all |