几道单选题,名词性从句,请问选什么,为什么这样选?1.Are you sure ____?A.whether she i

几道单选题,名词性从句,
请问选什么,为什么这样选?
1.Are you sure ____?
A.whether she is honest B.that she is honesty C.she is honest D.is she honest
2.It was____ he worked hard that he succeeded.
A.because B.since C.as D.for
3.____ is unknown to us all.
A.Where did she put it B.Where she put it
C.That where she put it D.in which she put it
4.It is strange____.
A.that no one should like this book B.that no one liked this book
C.that why no one likes this book D.why no one likes this book