单项选择题

Can you ______ any smell of the gas which is escaping

[A] discover
[B] detect
[C] find
[D] spot

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单项选择题

Gettysburg was the ______ of the most important battle in American Civil War.

[A] scene
[B] view
[C] sight
[D] landscape

单项选择题

Excuse me. If your call's not too urgent, do you mind ______ mine first

[A] I make
[B] if I make
[C] me to make
[D] that I make

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