The parents were in search _______ their son who was lost when the two countries were ______ war.
#26257
A
of; in
B
of; at
C
for; at
D
for; in
推荐题目
_____of modern agriculture, more and more waste is produced.
#27589
A
With the development
B
With the developing
C
By the development
D
By the developing
 The tiger, once a __    __ animal to humans, is now ____ of disappearing on the earth.
#25994
A
dangerous, danger
B
dangerous, in danger
C
in danger, in danger
D
danger, in danger