题目内容
50.[1997上海]—What do you think made Mary so upset?—________ her new bicycle.
A. As she lost B. Lost
C. Losing D. Because of losing
提示：
| 题目考察动名词作主语的用法
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—Thank you, I certainly will.
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A. Happy birthday to you |
B. Let me help you with your maths |
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C. Please remember me to your mum |
D. Don't forget to post the letter |
49.[1997上海] She can't help ________ the house because she's busy making a cake.
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A. to clean |
B. cleaning |
C. cleaned |
D. being cleaned |
48.[1997上海] Without the air to hold some of the sun's heat, the earth at night ________ , too cold for us to live.
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A. would be freezing cold |
B. will be freezing coldly |
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C. would be frozen cold |
D. can freeze coldly |
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A. mustn't have arrived |
B. shouldn't have arrived |
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C. can' t have arrived |
D. need not have arrived |
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A. the doorbell rang loud |
B. Nancy heard the doorbell ring |
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C. someone knocked at the door |
D. the doorbell was rung |