The teacher said, “What are you thinking about?”=The teacher asked me _______thinking about.
A. what were you
B. what you were
C. what I was
D. what was I
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Can you find out _______ her pen?
A. where Alice had put
B. where had Alice put
C. where Alice has put
D. where has Alice put
_______ is a fact that English is accepted as an international language.
A. What
B. This
C. That
D. It
Spring is the season _______ flowers are in full bloom.
A. whose
B. which
C. when
D. its
The sun heats the earth, _______ is very important to living things.
A. it
B. that
C. where
D. which
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