[ Grammar ]
He told us he ………………………….. a big tiger.
A. have seen
B. has seen
C. had seen
D. have see
Select your answer:
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Homophones › ViewOil spills around the world (affect, effect) future generations of wildlife.
A. Affect
B. Effect
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Most studies ______ that acupuncture does not reduce nausea and vomiting caused by radiation therapy
A. are shown
B. were shown
C. have shown
D. have been shown