Sunglasses are used________protecting your eyes on sunny days. [ ]A. to

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Sunglasses are used________protecting your eyes on sunny days.    [     ]
A. to
B. as
C. for
D. by

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举一反三

They went camping and cooked food _____ an open fire.      [     ]
A. on
B. over
C. above
D. up

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The shoes with adjustable heels were invented_________Julie Thompson.    [     ]
A. with
B. for
C. to
D. by

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Tea was invented       __  accident over three thousand years ago.          [     ]
A.  by
B.  in
C.  because of
D.  for

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The teacher divided the students in his class _____ ten teams.    [     ]
A. in
B. to
C. into
D. at

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When I was waiting for the bus, Tom came           in his father"s car.       [     ]
A. on
B. in
C. to
D. by

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