We don’t doubt _____ he will succeed in the research work.
| A．that | B．whether | C．how | D．what |
I don’t think the problem you referred to is worth______.
| A．thinking | B．being thought over |
| C．thinking over | D．considering of |
---I’m taking part in the 200-meter race tomorrow. ---_________.
| A．Nothing at all | B．congratulations | C．No problem | D．Good luck |
—Why didn’t you tell him about the exciting news?
—He rushed out of the room ______ I could say a word.
| A．before | B．after | C．when | D．until |
______ production going up by 60%, the company had another excellent year.
| A．As | B．For | C．With | D．Though |
---How much salt did you put in the dish? ---I’m sorry to say, _______. I forgot it.
| A．nothing | B．no one | C．no | D．none |