What would have happened ________, as far as the cliff?
| A．if Bob has walked farther | B．if Bob should walk farther |
| C．if Bob had walked farther | D．if Bob walked farther |
You’d better _____ his name, address and telephone number in your notebook before you forget them.
| A．set off | B．set about |
| C．set up | D．set down |
Driving past the crossroads, I found a little girl ____ on the sidewalk crying.
| A．lying | B．laying |
| C．to lie | D．to be lying |
We won’t give up ______ we should fail twenty times.
| A．even if | B．since |
| C．whether | D．until |
Honey, it’s your turn __________ the dishes.
| A．cleaning | B．to clean |
| C．of cleaning | D．to be cleaned |
Hawking is known _________ the greatest scientist alive.
| A．of | B．for | C．as | D．to |