— If I report it to the police, they’ll want to know where I found it._______? They might want to know what I was doing there.
—I’m going to a party this evening. —________! You have to do your homework.
—We must stop ________ plastic bags (塑料袋). —You’re right. It’s bad for our environment(环境).
—Excuse me. Look at the sign: NO PARKING! —Sorry, I ________ it.
Listen! ________ is knocking on the door. Go and see who it is.
It’s very cold outside. Most of the families keep their windows _________. openB. opened C. closeD. closed