I ________ on the door for ten minutes before the door was f
I knocked on the door,but ________ answered.[
there was a knock on the door.
The child was ________ to open the refrigerator door
i remembered ______ the door before i left the house
I remembered ________the door before I left the office,but f
Open the door,_________ ________?
always knock on the door before you enter
you must ____(knock)on the door before you enter
(1)Please do not e_____ before knocking on the door.
The door was ________(open) when I reached home.请说明原因
I ________/________(wait) for ten minutes.
we should never wait for the door to open before