-----the next 10 days,I had a great time.A In B On C At D For

问题描述:

-----the next 10 days,I had a great time.A In B On C At D For

A 选项in 表示未来的某段时间里,与I had主句时态不符;
B选项on 表示在某一天,与10days不搭;
C选项at表示在某个时间点,具体的几点;
D选项for 表示一段时间