请高手帮我看一下，给出讲解

Question

1 pick me up at 8 o'clock. I ____ my bath by then.
A may have B will be having
C can have had D will have had
2The minister had his secretaries____ a press conference.
A arrange B to arrange C arranging D arranged
3I don't think she 'll be upset, but I'll see her in case___
A she will B she would C she does Dshe will
4 It was high time that this argument ___ put to an end.
A must be B is C was D should be
5___ such a good chance,he planned to learn more.
A To be given B Having been given
C Having given D Giving

Answer 1

1.D by+时间通常是用完成时，而那个时间是将来，所以用将来完成时
2.A have sb do sth让某人做某事
3.这道题我觉得没有正确答案，应该填she is, in case 引导条件句，用一般现在时就行，可以这样看： I'll see her in case she is (upset)
4. C it's high time that 从句用过去时
5. B 分词做状语，he和give是被动

追问

第三题的D she is ,不好意思，我打错了，请问那一题 don't think she 'll be upset, but I'll see her in case___前面是将来时，为什麽要用现在时呢？
第四题的it's high time that +should be 不是虚拟语气吗，为什么不选D 呢？
还有你的答案都是书上的标准答案，你的英语真好！

追答

第三题条件状语从句，主句用将来时，从句用一般现在时，语法规则就这样。
第四题也是一样就这么要求的，咱们只能遵守了

追问

第四题It is (high) time that后面的从句谓语动词要用过去式或用should加动词原形，按理来说D 也可以呀

追答

语法上是这么说，但老外一般都用过去时。