用by+v-ing改写下列句子

用动词-ing 形式改写下列句子 用动词ing形式改写下列句子 用动词ing改写下列句子 动词-ing 改写下列句子 用--ing分词改写句子 用V-ed形式或连词+V-ed形式短语改写句子 The concert which was given by the b 用现在完成时改写下列句子 用过去完成时改写下列句子 用yesterday改写下列句子 用主动语态或被动语态改写下列句子 Electric silppers were invented by Julie Th 用ing形式连接下列句子 关于非谓语分词的用分词改写下列句子:1.We were delayed by heavy trucks which we