John has tried many ways to solve the physics problems, but _______ works.
| A．neither | B．no one | C．none | D．nothing |
.They desired that they_______ the right to vote.
| A．had | B．have | C．are | D．were |
—Who______ it be that is knocking at the door?
—It ______ be Father, but I’m not sure.
| A．can; must | B．can; may | C．must; can | D．may; must |
—Why is Mr. Li so happy this morning?
—Because he was honoured with a(n)______ for excellence in teaching.
| A．present | B．gift | C．award | D．reward |
—Daddy, can you buy me a new MP3 when you go to Beijing?
—You ______ get one if you are admitted to a key middle school.
| A．could | B．shall | C．may | D．can |
The day ______ she spent with us was never to be forgotten.
| A．when | B．on which | C．that | D．in which |