His theory___to be true. A.proved B.was proved C.is proved D.has been proved(为什么不用被动,是proved的固定形式吗?）

His theory___to be true. A.proved B.was proved C.is proved D.has been proved(为什么不用被动,是proved的固定形式吗?） It can't be his new house. Don't be sad,remember love will find his way! if Alan doesn't change his mind ,he will be 翻译His singing didn’t appeal to be much. NO it ____his.His much smaller.A.can't be B.may be C.mustn't be 选哪个?为什么? Listen!His family must be quarreling,【aren't they?】,此句中【aren't they?】为什么不是isn't it? He doesn't do his homework every day.-His homework__by him every day.A.doesn't be done B.isn't done为什么选B? he shouldn't be dishonest to his parents.同义句he ___ ____ ____ ____ to his parents. Considering his appearance,he doesn't seem to be a forty-year-old man.请翻译 i don t want to be his friend any more 同义句 I don't want to be in the way to beg pleading for his love翻译 he doesn't like to be alone.he wants__(stay)with his friends Toscanini became ____ his enemies didn't want him to be His parents don't want him to be a _____(drive) He won't be(worry)about his lesson any more.应用什么形式,为什么 I shouldn't be playing with his things.这是什么用法? the boy is_(cry)because be can't find his mother