I swam in sea yesterday.对swam in the sea 提问

I swam in sea yesterday.对swam in the sea 提问 I swam in the sea this morning I hear that he swam in the sea yesterday?这句话对吗?swam可以换成swim, swam in the sea意思 her uncle swam in the sea last year 对swam提问 Tom swam in the river yesterday.swam提问 yesterday he swam in the sea .是病句吗,怎么改 英语一般疑问句：He swam in the river yesterday. he is swimming in the sea(in the sea画线）对画线部分提问 i hear that he ___(swim)in the sea yesterday Those are the boys.The boys swam in the river yesterday afte Someone saw him swam in the lake yesterday.改为被动语态He__ __ __s