be back to do sth 中back 是什么词性?she will be back to parpre for dinn_英语解答

be back to do sth 中back 是什么词性?
she will be back to parpre for dinner.

人气：428 ℃　时间：2020-03-26 14:16:10

解答

back是副词,在英语中,副词可以作表语,如out,He is out.