_______blood if you can and many lives will be saved．
| A．Giving | B．Give | C．Given | D．To give |
You don’t have to _____ me you’re the right person for the job.
| A．believe | B．research | C．convince | D．admit |
I wrote a letter of complaint, and the airline has promised to _____ the matter.
| A．look up | B．look into | C．look through | D．look for |
-------Take a break, Amy. You ________ on the piano all morning.
-------I’d like to, but this time next week I _______a concert at Music Hall.
| A．have practiced, will give | B．are practicing, am giving |
| C．have been practicing ,will be giving | D．will have practiced, have been giving |
By the end of last week, we __________ a satisfactory solution to the problem.
| A．have found | B．will be finding | C．had found | D．found |
A large sum of money has been raised the poorly-educated children in the mountainous areas.
| A．in return for | B．for the benefit of | C．in search of | D．in memory of |