Don’t forget where the emergency exits are _____an emergency.
As we joined the big crowd I got ______ from my friends.
—Did you see a man in black pass by just now? —No, sir. I ________ a newspaper.
It is reported that two schools,________ are being built in my hometown,will open next year.
Peter received a letter just now ________ his grandma would come to see him soon.
______ he referred to in his article was unknown to the general reader.