Question

．Walking alone in the dark，the boy whistled to ________ his courage.

A．hold up	B．keep up
C．set up	D．take up

Answer 1

B
解析　句意为：独自在黑暗中行走，男孩吹口哨保持勇气。B项意为“维持，使不低落”，符合句意。A项意为“举起”；C项意为“建立”；D项意为“拿起”，都与句意不符。