题目内容：

Please look at the girls ___(dance) over there!How well they dance!
答案是dancing

优质解答

Please look at the girls ___(dance) over there!How well they dance!
答案是dancing
句型look at sb.doing sth 看某人正在做某事
dancing这里做后置定语,正在跳舞的那个女孩,所以用动名词形式