—My phone is at home. I have to go back for it.— You don’t need to. You can use ____.
How _______ it is to feel the roller coaster _______ at full speed!
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.