l have problems learning English,could you give me some advice?为什_英语解答

l have problems learning English,could you give me some advice?为什么problem直接跟learning?

人气：186 ℃　时间：2019-08-18 12:23:13

解答

have problem in doing sth,这里是省略了in,in是介词,后面要用—ing形式