Having checked the doors were closed, and _________all the lights were off, the boy opened the door to his bedroom.
-----“Where did you find the professor who made the speech yesterday?” -----“It was in the hall ______ the students often have a meeting.”
The factory produces half a million pairs of shoes every year, 80% ____ are sold abroad.
I hate _______ when people talk with their mouths full.
I thought her kind and honest _____ I met her.
---- Do you mind if I use your bicycle? ----____________.