“Sustainable development” is a question _______ we can continue developing the world without damaging the environment.
A. why
B. when
C. that
D. how
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My parents used ________they had to get a new car for my brother.
A. which
B. all what
C. what
D. \
She was so angry at all ________ he was doing _________ she stayed up all night.
A. that, that
B. that, which
C. what, that
D. what, as
Our school is no longer _________ it was 10 years ago, _________ it was not well equipped.
A. what, which
B. that,which
C. what, when
D. that, where
Our bad living habits will destroy the earth. Only by changing ________we live can we save the earth.
A. that
B. what
C. how
D. where