【2013四川雅安】 lovely the squirrel is!
Don’t get off the bus __________ it stops.
James used _____ on the right in China, but he soon got used______ on the left in England.
---Has he returned from Canada_________? --- Yes, he’s _________ come back.
--- Where have you _______? I didn’t see you a moment ago. --- I ________ to the library.
---________ do you use your computer ______ watching films? --- Nearly every day.