39. Thank you for your help. ______ for your help, I wouldn’t have succeeded in my experiment.
| A．If it is not | B．Were it not | C．Had it not been | D．If they were not |
Suddenly I heard a terrible noise ahead. I looked forward _______ what was happening, but found nothing.
| A．to seeing | B．to see | C．for seeing | D．and see |
Many businesses must have been badly influenced during that financial crisis, ________?
| A．haven’t they | B．didn’t they | C．must’t they | D．weren’t they |
Your attention, please! ________ today is Professor Yu Dan from Beijing Normal University.
| A．Have joined us | B．To join us | C．Joining us | D．Join us |
---You see, I’m poor in Chinese, you are not good at English, and...
--- That’s ____ we should help each other.
| A．when | B．where | C．how | D．what |
---Look! The two boys always come in and go out in pairs.
---That’s really as a saying goes, “_______.”
| A．Two heads are better than one |
| B．Birds of a feather flock together |
| C．Bad fortunes never come singly. |
| D．One boy a boy, two boys half boy, three boys no boy |