We should eat ________ food so that we can enjoy a better life.
A. healthy enough B. enough health C. enough healthy
—Wow!You look different!You________wear glasses．
—Yes，I did．But now I am wearing contact lenses(隐形眼镜)．
| A．could |
| B．must |
| C．used to |
| D．would |
—Could I borrow your bike？
—________，but please return it by Saturday．
| A．I’m sorry |
| B．Of course |
| C．Let me see |
| D．No，thanks |
—Excuse me，is this the right way to the bookstore？
—Sorry，I’m not sure．But it________be．
| A．can |
| B．need |
| C．must |
| D．might |
—Excuse me，where is the clothing store？
—________．I don’t know．
| A．Thank you |
| B．Hello |
| C．I’m sorry |
| D．You’re welcome |
—Excuse me．Could you please tell me where I can get the dictionary？
—________．There’s a bookstore on Yimeng Road．
| A．Sorry |
| B．Sure |
| C．Good idea |
| D．Thank you |