Experts say walking is one of the best ways for a person to _____ healthy.
| A．preserve | B．stay | C．maintain | D．reserve |
Plastic forks, knives and spoons can be washed and used again___ being thrown into the garbage.
| A．more than | B．other than | C．rather than | D．less than |
Excellence is not difficult ---simply decide right now to give it your best shot---____you will be amazed with ___ life gives you back.
| A．and; what | B．but; that | C．but; whose | D．and; whose |
We understand _______small changes to our land can have a big impact upon our environment __________ as we know is vulnerable enough.
| A．what; which | B．what; where | C．how; where | D．how; which |
–Where can we park ___ car?
–Don’t worry. There’s sure to be ____ parking lot nearby.
| A．the; the | B．the; a | C．/; a | D．/; the |
—Do you often go to the gym? You look fit．
—On the contrary, seldom ____ in my spare time．
| A．I work out | B．did I work out |
| C．I worked out | D．do I work out |