We keep in touch with each other____ letters. A. in B. with C.by _英语解答

We keep in touch with each other____ letters. A. in B. with C.by D. use

人气：150 ℃　时间：2020-03-24 02:14:41

解答

C
with 后常加有形工具.
in 后常加语言,墨水,颜料
by 后加交通工具,无形的手段