二、单项选择
21. The sun heats the earth, ___________ is very important to living things.
A. that B. what C. which D. where
22. Can you tell me ______ the railway station?
A. how I can get to B. how can I get to C. where I can get to D. where can I get to
23.--- Did she break the vase ______?
--- No. Quite by accident.
A. on purpose B. with purpose C. for purpose D. at purpose
24.Hearing the news about the crash of Air France Flight 447, he became very concerned
his daughter on board.
A. in B. with C. about D. at
25. 21st Century School Edition is ____ a newspaper. It helps us to improve our English a lot.
A. no less than B. no more than C. less than D. more than
26. A housewife is busy all day; she has house to clean, clothes to wash and kids .
A. to take care B. taking care C. to take care of D. taking care of
