问题补充:
The mother often tells her son to be a good boy, warning him to trouble.
A. hold back from
B. keep out of
C. break away from
D. get rid of
答案:
A. hold back from
(答案→)B. keep out of
C. break away from
D. get rid of
解析:hold back from 意为“向……隐瞒”;keep out of 意为“使在……之外”;break away from 意为“脱离”;get rid of 意为“摆脱,消除,去掉”。