Question

Walking alone in the dark,the boy whistled to ( )

Walking alone in the dark,the boy whistled to ( )his courage. A.hold up B.keep up C.set up D.take up选哪个，加解答。谢谢

Answer 1

应该选B.保持勇气

Answer 2

c

追问

原因

追答

独自走在黑夜，男孩吹口哨增强勇气