单选题 If you ______ smoking and drinking, your health will improve soon.
A. gave up B. give up
C. had given up D. will give up

【正确答案】 B
【答案解析】[解析] 在田间状语从句中,用一般现在时来表示将来的行为,因此答案为“give up”意为“戒掉”。