--- How I wish I had studied harder when I was in senior school! --- If you had, you a university student now.
Buses here are always crowded with passengers, so I prefer _____ there rather than take a bus.
------- Where did you find him? -------It was in the hotel _____ he lived.
The scientist ______ much of his time to increasing the rice production.
The goods are of good _________.
There are two buildings, _______ stands nearly a hundred feet high.