Make the sentense negative and interrogative 1 Helen has been translating this article for an hour.2we have been listening to the least news for five minutes.3she has been ironing since 5 o'clock.4 been has been talking a shower for quater of an hour.5 a cat has beeen watching a bird forten minutes.6Tom's cousin has been doing karate for twelve years.7 We have been filling in the questionnairees for twenty minutes.9) Mike has been searching for the information since last Tuesday.10) Den has been driving for six hours now.

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