My friend Mary is _____ beautiful girl and _____ girl everyone likes to work with.
| A．a, a | B．a, the | C．the, a | D．the, the |
After careful consideration, he decided to take the position, ______ he knew it would be difficult for him.
| A．even though | B．now that | C．as if | D．so that |
The teacher handed our writings back to us, ______ some necessary changes.
| A．making | B．to have made | C．having made | D．made |
You must ______ that the power is off before you leave the lab.
| A．check | B．know | C．decide | D．examine |
At such gatherings, people ______ are not necessarily your relatives or friends.
| A．that you say hello | B．who say hello to |
| C．you say hello to | D．whom you say hello |
—We’d better go downstairs right now for lunch.
—______ They serve food 24 hours a day.
| A．Take your time. | B．No way! |
| C．Hurry up! | D．It doesn’t matter. |