30. The mayor of Beijing says that all construction work for the Beijing Olympics ______by the end of this month.
| A．has been completed | B．has completed |
| C．will have completed | D．will have been completed. |
------- I am thinking of the test of tomorrow. I’m afraid I can’t pass this time.
--------- ________________! I am sure you’ll make it.
| A．Go ahead | B．Good luck | C．No problem | D．Cheer up |
News came from the school office______ Wang Lin had been admitted to Beijing University.
| A．which | B．what | C．that | D．where |
To begin with, we learn how to______ our body when skating.
| A．balance | B．keep | C．hold | D．get |
My sister, as well as her classmates who_______ late for class , ________ criticized by their head teacher.
| A．were, were | B．was, was | C．were, was | D．were, was |
. —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 |