请教5道名词性从句的题目,希望大家多多指教,

6.--I rang you at about nine,but there was no reply.
--oh,that was probably______I was seeing the doctor.
a.why b.when c.what d.that 我选D,答案是B
那个人回答说：哦,那时候我可能在看医生
that指的是那时候,后面当然应该用when了,根据句意就可以选出来的哦.
7.after five hours's drive,they reached______they thought was the place they'd been dreaming of.
a.that b.where c.which d.what 我选B,答案是D
reach后面要跟宾语从句的,宾语从句也是一个完整的句子,该宾语从句缺少
主语,what they thought是主语.
不要一看见“地点”就选where,一个句子完整了,才能选where.
8.--the basketball team is in the playoffs.I'll watch it on TV.do you want tocome over?
--Actually I have a ticket,but I'm not feeling well.you can have it for______it cost me.
a.that b.which c.how d.what 我选C,答案是D
介词后面只能跟关系代词,不能跟关系副词.
9.______matters most in learning english isenough practice.
a.where b.why c.what d.which 我选D 答案是C
前面是主语从句,翻译为：在学习英语中最重要的是足够的练习,一看到...的,就应该用what啊.
10.people were perhaps more honest a long time ago when life was very different from ______it is today.
a.which b.that c.what d.how我选C,答案是A
空缺处少的是life这个词,只能用which指代的.
有问题,请留言~!