单项选择题

Mary has got a full mark in the test. She ______ very hard all these days.
A) will work C) could have worked
B) may work D) must have worked
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单项选择题
The computer works shockingly fast, ______ various data at the speed of light. A) having handled C) handled B) handling D) handles
The computer works shockingly fast, ______ various data at the speed of light.
A) having handled C) handled
B) handling D) handles
单项选择题
The more we look at the painted picture hung on the wall, ______. A) we like it less C) the less we like it B) less we like it D) we less like it
The more we look at the painted picture hung on the wall, ______.
A) we like it less C) the less we like it
B) less we like it D) we less like it
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