The old man was taking a walk,___by his grandson.A)being supposed B)supposed在知道上面看见了一个,回答是选A,因为要前后时态一致.但是,在我的作业上,我就是选的A,是错的.为什么选B呐?

The s____ old man was badly ill The old man was still in d____. the old man was crossing the road 改为 同义句 the old man slept.the door was open. ( )the end of the road was ()old man A girl helped an old man,and the old man was excited译成中文 the old man was very -------(感谢)用词语填空 The old man was feeling very tired.的句子成分划分 the old man was l____ enough to stand up The poor old man was t____ ill in bed Luckily the old man was not badly hurt的翻译 The old man was so tired that be could h_______walk I was a day old man to sleep on the The old man was very kind to us.(改为感叹句）___ ____ the old man was to us the old man was not alive after the earthquake同义句the old man _____ ______ ______ in the earthquake The old man's child was a beautiful girl.The old man's child was a beautiful girl.She with the lion.The lion was nice to her. the old man born! The old man looks