单项选择题

Very little（）they had made an important discovery in science.

A. they realized
B. they realized what
C. did they realize
D. did they realize what

<上一题 目录 下一题>
热门 试题

单项选择题
From this library we can borrow（）many books as we want to read.

A. that
B. such
C. as
D. too
单项选择题
I'll tell you the secret, but（）you don't tell anyone else about it.

A. only if
B. if only
C. even if
D. if not
相关试题