There is someone knocking at the door.为什么用“knocking”,要加“ing”
There is someone knocking at the door.为什么用“knocking”,要加“ing”
i seem to hear someone knocking at the door,knocking为什么要加ing
--Listen! Someone is knocking at the door.
一道七年级英语题I saw someone knocking at the door.为什么用knocking,see
someone is knocking at the door.It might be the posyman.为什么用
someone is knocking at the door.___must be Tom.为什么用he而不用it?
"Did you heard someone knocking at the door?"为什么要用at?
there's someone knocking at the door.等于什么
Someone is knocking at the door.同义句改写:There is ___ ___ at th
Someone is knocking at the door.____ is it?
Someone is knocking at the door,but who can____ be?
Someone is knocking at the door._must be Tom