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请教2道英语选择题 请给出正确答案并讲解 谢谢
1(),itimmediatelyranaway.a.Observingherb.Onbeingobervedc.Havingbeenobervedd.Onherbein...
1 (),it immediately ran away.
a.Observing her b.On being oberved c.Having been oberved d.On her being oberverd
2 The experts were now fully convinced that the animal ( ) a puma.
a.must be b.should have been c.can only be d.could only have been 展开
a.Observing her b.On being oberved c.Having been oberved d.On her being oberverd
2 The experts were now fully convinced that the animal ( ) a puma.
a.must be b.should have been c.can only be d.could only have been 展开
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1.D On being observed ,一被人看到 on 是介词“一……就……”
“一被看到,它立即就逃跑了”
2.A must 表示非常肯定的推测 “一定是”
“专家们现在充分确信那只动物一定是美洲豹”
“一被看到,它立即就逃跑了”
2.A must 表示非常肯定的推测 “一定是”
“专家们现在充分确信那只动物一定是美洲豹”
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