Question

【题目】You’d better exercise at least three times a week ______ you can keep fit.

A. so that B. only if

C. as though D. in case

Answer 1

【答案】A

【解析】

试题分析：考查状语从句连词辨析。连词so that以至于，以便于，为了；当后面的从句中含有情态动词的时候，so that通常引导目的状语从句。only if只要；as though似乎，好像；in case以防；句意：为了保持健康，你一个星期至少锻炼三次。根据句意可知要适应so that引导目的状语从句。