Jack, look! Everybody is doing homework quietly. ______ you make a noise in class?
I feel silly in these clothes. Everyone will _____________ me.
. If you try to learn too many things at a time, you may get _____________ .
Some people think clowns are only funny for children. _____________ , they can help people forget their problems, at least for a short moment.
A smile can help us _____________ difficult situations and find new friends in a world of strangers.
We should all remember that some great scientific discoveries _____________ by chance.