注意：此页面搜索的是所有试题
题目内容
（河北农业大学大学英语Ⅳ）
Although it is painful to watch him struggling with the difficulty, it is probably better to _______ unless he asks for help.
A、
stay on the sidelines
B、
stand still
C、
stay back
D、
stand in the way
A、
stay on the sidelines
B、
stand still
C、
stay back
D、
stand in the way
参考答案
