英语 1.what if it () next week?A rain B rains C is raining D will rain

英语 1.what if it () next week?A rain B rains C is raining D will rain
请问这一题怎么选?试卷上的,题目是不是有点印错了?
2.chinese students have () weeks () in the summertime than American students.
A more on B fewer ,on C more ,off D less off 选完后请回答:此句中的in the summertime 能不能换成:for the summertime.比如下面这一句:my school has fewer weeks off for the summer holiday than Daniel's.
3.of all the lessons in Book II ,unit 5 is the most interesting.译这个句子.