________ can help people be strong.
| A．Do exercise | B．Doing exercises |
| C．Doing exercise | D．Exercises |
The houses in big cities are so expensive that I can’t __________ to buy one .
| A．afford | B．choose | C．decide | D．Give |
.A smile costs _________， but gives so much. So we should learn to smile.
A. something B. anything
. nothing D. Everything
--- Is your teacher friendly ______you? --- Yes， he is very good ______us.
A. to， to B. with ， with C. to， with
---Look， here comes Cindy! She is always full of _____________.
---____________. Because she takes a lot of exercises every day.
| A．knowledge， So is she | B．courage， So does she |
| C．change， So she is | D．energy， So she is |
---Why did you laugh just now?
---Ted wanted to tell us _____ very funny story， but he forgot ______ ending himself.
| A．a ， an | B．the ， the |
| C．The ， a | D．a ， the |