________ we ________ much longer, we might not even have had the spot on the rooftop

Why does she always ask you for help?— There is no one else____,is there?[ ]

What were you doing at 8:00 last Sunday —I _____ rubbish with my classmates by Zijiang River

— I’m sure Andrew will win the first prize in the final. — I think so. He ______ for it for months. [ ]

We have made up our minds to __________teaching after we graduate from college.