So hard ______ that we had to wait another day.
| A．did it rain | B．it rained | C．has it rained | D．it has rained |
He tried his best to solve the problem, _______difficult it was.
| A．no matter | B．no matter how | C．whatever | D．although |
This film_________ the scenes of my childhood.
| A．called up | B．called on | C．called out | D．called for |
—Do you think playing cards is beneficial to our study?
—No，if ________，it can help us kill time when we have nothing to do.
| A．something | B．anything | C．nothing | D．everything |
I feel sure that ________ qualification，ability and experience，you are abundantly suited to the position we have in mind.
| A．in need of | B．in terms of | C．in favor of | D．in face of |
The time he has devoted in the past ten years ________ the disabled is now considered ________ of great value.
| A．to help；being | B．to helping；to be |
| C．to help；to be | D．helping；being |