---Who is to give us the lecture today? ---The lady _____ our headmaster into the hall.
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.