Предмет: Химия, автор: oduvan365ks

помогите пожалуйста решить !!!

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Автор ответа: banukenzhebek

0

я думаю именно так решается

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Предмет: Английский язык, автор: Аноним

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did you come
you have come
have you come
you came
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didn't see
don't see
haven't seen
can't see
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were built
have built
built
have been built
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was staged
staged
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forgot
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was forgot
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hasn't seen
wasn't seen
didn't see
haven't seen
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You have bought
Did you buy
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has marked
has been marked
marked
marks
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didn't sign
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haven't been signed
haven't signed
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aren't they
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