______ difficult questions they are! I can’t answer them．
#66003
A
How
B
How a
C
What
D
What a
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Look, the roller coaster !
#66651
A
how high speed; is moving
B
what high speed; is moving at
C
how a high speed; is moving at
D
what a high speed; is moving
_______ great man Huang Furong is! He lost his life while saving the students in the Yushu earthquake.
#67379
A
How
B
How a
C
What
D
What a
— ________ invention the wheel is! — I can’t agree more. It is an invention that changed the world.
#65760
A
What a useful
B
How useful
C
What a useless
D
How useless