问题补充：
— What are you going to do this weekend?
— I’m not sure . Maybe I am going swimming.
A. also
B. too
C. ever
D. yet
答案：
A. also
B. too
C. ever
(答案→)D. yet
解析：句意：--这个周末你打算做什么？--我还不能确定。可能我将要去游泳。分析提示：肯定句中有some, already时，改为否定句或疑问句时通常要分别改为any, yet。如：I have already finished my homework. 我已经完成了我的作业。 I haven finished my homework yet. （否定句） 故选D
