单项选择题

(A number of) endangered (species) (increases) every year and natural (resources disappear.)

A．A number of
B．species
C．increases
D．resources disappear
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单项选择题
His wife has to work hard at home, and perhaps outside the home
A. as yet

B. so far
C. before long

D. as well
单项选择题
If Dorothy had not been badly hurt in a car accident, ______ in last month’s Olympic Games.
A. she would participate (参加)
B. she might participate
C. she would have participated
D. she must have participated
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