You should put them back after you use them.=You should put them _英语解答

You should put them back after you use them.=You should put them back ___ ___ them

人气：486 ℃　时间：2020-04-06 22:48:33

解答

after using
after 可以做连词,后跟句子.也可以作为介词,后跟v-ing形式.