—The meeting is about to start, yet the speaker hasn’t turned up.— No one knows ____.
#70404
A
what the matter is
B
what is the wrong
C
what is the matter
D
how matter stood
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 The question is too difficult and we found ________.
#66590
A
it not easy to answer it
B
it was not easy for us to answer it
C
it’s not easy to answer
D
it not easy to answer