________ a certain doubt among the people as to the practical value of the project.
#99564
A
It has
B
They have
C
It remains
D
There remains
推荐题目
It was for the first time that the two countries ______ an agreement.
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A
reached
B
have reached
C
had reached
D
will reach
Hurry! The train _______. You know it _____at 8:30am. .
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A
leaves; leaves
B
is leaving; leaves
C
leaves; leaving
D
is leaving; is leaving