英语翻译:信是你的笔友寄来的吗?Is the letter ( )

问题描述:

英语翻译:信是你的笔友寄来的吗?Is the letter ( )

Is the letter (from your pen pal/ friend)?
Is the letter (sent by your pen pal)?

Is your letter sent by your pen-friend?

Is the letter send form your friend!

sent from your pen pal

sent from pen pal sent与be动词构成被动语态

from your pen pal