Do you know why the system doesn't work?- Sorry, let's ask the engineer ____.
A. what is the matter
B. what the matter is
C. how is the matter
D. how the matter is
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To tell you the truth, this is _____ in the world.
A. which I have
B. that I have
C. what I have
D. whether I have
This theater is not ______ it was ten years ago.
A. that
B. when
C. which
D. what
She pointed to the hospital and said, “That’s _____ I was born.”
A. when
B. how
C. why
D. where
The mountain is no longer ________it used to be.
A. which
B. that
C. as
D. what
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