I don't like math and science.They are boring.They number of book_英语解答

I don't like math and science.They are boring.They number of books on the desk are ten.改错题

人气：178 ℃　时间：2019-12-07 14:13:11

解答

否定句 and改成or 后面的number of 为主语后面应用单数形式所以应把are改成is