Because of a long drought(干旱),the farmer was( )about the prospect of a good harvest.A:double B:doubling C:doubt D:doubtful

问题描述:

Because of a long drought(干旱),the farmer was( )about the prospect of a good harvest.
A:double B:doubling C:doubt D:doubtful

C
Be doubtful about
对.有所怀疑.