Climbing hills__________of great help to health.
| A．is | B．are | C．were | D．be |
I feel silly in these clothes. Everyone will _____________ me.
| A．worry about | B．take interest in | C．get rid of | D．make fun of |
If you try to learn too many things at a time, you may get _____________ .
| A．surrounded | B．settled | C．confused | D．amused |
Some people think clowns are only funny for children. _____________ , they can help people forget their problems, at least for a short moment.
| A．Actually | B．Especially | C．Probably | D．Surely |
A smile can help us _____________ difficult situations and find new friends in a world of strangers.
| A．get across | B．get through | C．get out | D．get off |
We should all remember that some great scientific discoveries _____________ by chance.
| A．gained | B．discovered | C．occurred | D．earned |