help 过去分词之一还是help?
help 过去分词之一还是help?
help的过去分词
help的过去式,过去分词,现在分词
help stay的过去式河过去分词
help and work 的过去分词
help,open的过去分词是什么?是before sb do sth.还是before sb doing sth...
help和free的过去式和过去分词
excuse help study visit的过去分词及一般过去时
help的现在分词
stady、stop、leave、help、say、see、call、pick、buy的现在分词和过去式、过去分词
help、discower、study、live、stop、eat、play的过去式和过去分词是什么?
写出下列动词的过去分词 talk close pass skate jump eat go put sleep help