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
Mr. Johnson is ______ to our party.
A．more than pleased to come
B．pleased more than to come
C．more pleased than to come
D．more pleasing than to come
单项选择题
Whereas sudden great disasters are instantaneous, others, such as droughts, are ______.
A．cumulative
B．formidable
C．eternal
D．prospective
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