______ makes mistakes must correct them.
A. Who B. Anyone
C. Whoever D. Anybody
______ surprised me most was ______ such a little boy of seven could play the violin so well.
A. That...what B. What...that
C. That...which D. What...which
I couldn’t understand _____ with me.
A. the matter was what B. what was the matter
C. what the matter was D. that was the matter
This painting is splendid, but ______ we actually need it is a different matter.
A. that B. what
C. whether D. how
All _____ made _____ possible for China to succeed in carrying on its reforms and open-door policy.
A. what happened; it B. what happened; that
C. that happened; it D. that happened; that
We don’t doubt _____ he will succeed in the research work.
A. that B. whether
C. how D. what
