Question

请帮我填填这几道选择题，要加解析为什么选这个！

The____brothers don't look the same.But they are ___eleven.
A. twins all B.twin's,both C.twin,both D.twin all

I don't think we can finish our homework._____?
A.can we B do I C.can't we D.don't I

What ____useful book!And ____book is very interesting.
A.an a B.a a C.a the D.an the

Sometimes walking is ___than driving during the busy traffic time
A.fast B.faster C.slow

Answer 1

C A C B
1 twin brothers固定搭配，记住即可。
2 从句中主语为we，所以人称和动词跟从句走，肯定否定看主句。（若从句主语是第一人称以外的，一切都看主句。）
3 useful 虽为元音字母开头，但并非元音音素开头，所以用a 下一空，两次重复提到同一物品用the
4 比较级 选B