What some people don't realize is ________ difficult life can be after they get addicted to drugs.
A. that B. how
C. why D. what
Don't put off till tomorrow ________ you should do today!
A．what B．when
C．that D．which
—Don't you believe me?
—________， I'll believe ________ you say.
A．No; whateverB．Yes; no matter what
C．No; no matter whatD．Yes; whatever
The reform has changed the whole nation. It cannot remain ________ it used to be.
A．what B．where
C．which D．when
Evidence has been piled up ________ drinking water after getting up in the morning contributes to one's health.
A．what B．which
C．if D．that
It is usually thought ________ a little child says is truth.
A．what that B．that what
C．which D．that
