At the meeting they discussed three different______ to the study of mathematics.
The Boston Marathon bombings killed 3 people ,including a Chinese citizen_ Shenyang.
一I really thought I'd pass the driving test. —Oh,well, , Bill.
Anyone in the lab has to the following dos and don’ts.
It’s really difficult to ______ what he is trying to express.
This camera is of good quality. If it ______ break down within the first year, we would replace it with a new one.