单选题 Tom's mother tried hard to persuade him to ______ from his intention to invest his savings in stock market.

A、 pull out
B、 give up
C、 draw in
D、 back down

【正确答案】 D

【答案解析】[试题分析] 伞题考查对短语动词的掌握。 [详细解答] draw in意为“吸入；抵达”；give up意为“放弃，退出”，其后接名词或动名词；pull out常与介词of连用，意为“退出、撤离(工作等)”；back down可与介词from搭配使用，意为“放弃(主张等)”。根据题意，选项[D]back down为正确答案。