The doctor thought the medicine was perfect,but it didn't ________the disease at all.
--Monitor? --- I’m not monitor of our class. I __ with the teacher until the monitor is elected.
How long do you think ______ the computer company brings out a new product?
The manager suggested an earlier date ____________ the meeting.
Keep on practicing. You will play the piano _____, if not better than, Lang Lang.
_____and out of breath, we reached the top of the mountain and stopped _____ the beautiful scenery.