请帮我完成英语句型改写（用括号内的连词连接以下各对句子）1.He must be very clev

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1.He must be very clever.He must be very foolish.(either.or)
He must be either very clever or very foolish.
2.George does not play football.Dave does not play football.(neither.nor)
Neither George nor Dave plays football .
3.George does not play soccer.He does not play rugby.(neither.nor)
George plays neither soccer nor rugby.
4.He does not know.He does not care.(neither.nor)
He neither knows nor cares.
5.He forgot to take his umbrella.He forgot to take his briefcase.(not only.but.as well)
He not only forgot to take his umbrella but also forgot to take his briefcase.
或； He forgot to take not only his umbrella but also his briefcase.