单选题 Whenever you need Tom, he is always there whether it be an ear or a helping hand, so you can always lean on him.
A. count on B. benefit from C. stand for D. stick to

【正确答案】 A
【答案解析】[解析] 题干中的lean on意为“靠在……上”。A项“依靠”；B项“通过……获益”；C项“为……而奋斗”；D项“遵守，坚持”，只有A项与题干种划线单词意义相近。