The reason ____ the people in the mainland go to Hong Kong to buy formula is that people are not convinced ____the safety of formula produced in the mainland.
#76621
A
that; at
B
why; at
C
why; of
D
what; of
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It’s reported that over 70 different emoticons are used in text messages， happy：)is the most popular．
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to which
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that
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of which
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More wild tigers have been seen in the forest around this area, ____ there used to be very few.
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when
B
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The whole family still live in the house, most of _____ windows face south.
#78569
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the
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#77519
A
who
B
which
C
what
D
that