I can't figure out ________ it is that makes him so difficult at school.
A． how B．what
C．why D．which
We all held the view ________ the book said was right.
A．that what B．what that
C．that D．all which
—How do you think I can make up with Jack?
—Set aside ________ you disagree and try to find what you have in common.
A．what B．where
C．whether D．which
So quickly are science and technology advancing ________ is a possibility today may be a reality tomorrow.
A．which B．what
C．that which D．that what
Country life gives him peace and quiet, which is ________ he can't enjoy while living in big cities.
A．that B．why
C．where D．what
There is a popular belief among the Europeans ________ chicken soup can help cure flu.
A．what B．who
C．that D．where
