It is of great importance _______ parents say and do in family life, which may have a life-long effect on their children.
A. what B. that
C. how D. why
No one can imagine _______ life would be like without referring to modern technology.
A. that B. what
C. how D. when
Dating violence is _____ one person purposely hurts or scares someone they are dating.
A. when B. what
C. that D. why
An opinion is _____ someone believes is true but has not been proved.
A. that B. what
C. which D. whether
—Can I sit in the front row?
—Yes, you can take ________ seat you like.
A. whatever B. what
C. whichever D. which
I don't doubt ______ he has the ability to deal with the situation, but ______ the problem can be solved quickly depends on his attitude.
A. whether; if B. that; whether
C. if; whether D. whether; that