—What were you doing at 8:00 last Sunday?—I ______ rubbish with my classmates by Zijiang River.A.picked upB.am picking upC.was picking up
No one ________ paper, pens and pencils
They’ll finish the work _________ time.
Mr Smith always goes for a walk with his dog when he is_________.
—There will be ________ factories in 100 years. —Really? Where will people work then?
Planes will be very large______ flying will be very cheap.