It took a long time for the connection between body temperature and illness ___________.
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A
to make
B
to be made
C
making
D
being made
推荐题目
 Walking down the street the other day, _____.
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A
I saw unusual something happened
B
a terrible accident happened
C
something unusual was seen by me
D
I saw a terrible accident
Standing on the bank, the children watched the ship ______ with all kinds of goods.
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A
loading
B
being loaded
C
to be loaded
D
having loaded