We don’t know ________ it next. Let’s go and ask Mr. Li.
| A．what to do | B．to do what | C．whether to do | D．to do whether |
Potato chips were invented by a chef called________．
| A．Martin Robinson |
| B．Stephen Hawking |
| C．George Crum |
| D．James Naismith |
My dad doesn’t like the sour________in the slightest．
| A．sound |
| B．smell |
| C．taste |
| D．sight |
The students at this school always take________active part in volunteer work during the summer vacation．
| A．a |
| B．an |
| C．the |
| D．／ |
—It’s kind of you to give me a ride to the station．
—________。．
| A．It doesn’t matter |
| B．Never mind |
| C．No problem |
| D．My pleasure |
—Sorry，Tony．I took your school uniform________．
—It doesn’t matter．
| A．by mistake |
| B．by accident |
| C．on sale |
| D．on display |