___ we know, in a chemical change, energy cannot be created, ____.
#94863
A
Which, nor can it be destoyed
B
As, neither it can be destroyed
C
As, neither is it able to be destoryrf
D
What, nor is destoryed
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Our teacher always speaks slowly and clearly in class _____.
#91926
A
so as to be understood
B
to have understood
C
so as to understand
D
to understand
I go back to sleep when suddenly my bedroom became as bright as day.
#92983
A
was about to
B
was just to
C
would
D
was to
It never _____ humans until the mid1990s that some animals can be cloned.
#92718
A
occur
B
is occurred
C
occurred to
D
occurred