问题补充:
I don know .Can you tell me?
A. how swim; what to do
B. how to swim ; what to do it
C. how to swim; what to do
D. what to swim; how to do
答案:
A. how swim; what to do
B. how to swim ; what to do it
(答案→)C. how to swim; what to do
D. what to swim; how to do
解析:句意:我不知道怎么游泳?你能告诉我要做什么吗?两个空都是宾语从句,在疑问词引导的从句后面接不定式。How to swim怎么游泳;what to do要做什么;故选C。