In our factory there are 2,000 workers, two thirds of ____are women.
| A．them | B．which | C．whom | D．who |
Little children ask endless questions because they are ______ about everything.
| A．skeptical | B．aware |
| C．capable | D．curious |
--Jack fell off the ladder yesterday, but he is all right now.
--What a lucky dog! He ______ himself badly.
| A．should injure | B． could have injured |
| C．should have injured | D．might injure |
It has been announced that the award will be given to ______ has made the largest donation to charity this year.
| A．anyone | B．the one |
| C．whomever | D．whoever |
Many people agree that there has never been a more splendid opening ceremony than ______ of the Beijing Olympic Games in history.
| A．one | B．what | C．that | D．it |
--Has Billy finished his homework today?
--I have no idea. He ______ it this morning.
| A．would do | B．was doing | C．has done | D．had done |