Question

Leave the keys out ______ I remember to take them with me.

1. A.
   such that
2. B.
   so that
3. C.
   because
4. D.
   since

Answer 1

B
本题中考查连词的用法，this是指示代词，故不能选用。I remember to take them with me是leave the keys out的目的，故正确答案为B。
注意：such that不能构成一个连词，只能用such... that引导的结果状语从句；because和since都可以引导原因状语从句；since也可以引导一个时间状语从句。