问题补充:
Remember that there is still one point we must make clear at the conference tomorrow.
A. where
B. why
C. when
D. that
答案:
A. where
B. why
C. when
(答案→)D. that
解析:考查定语从句的关系词。先行词是one point,在定从 we must make clear at the conference tomorrow中作make的宾语,所以用that引导。选D。