Do you know where David is? I couldn’t find him anywhere.
Well, he have gone far. His coat is still here.
| A．shouldn’t | B．mustn’t | C．can’t | D．wouldn’t |
Sarah wondered what ______ her 70-year-old grandpa would make of the new computer.
| A．role | B．part | C．use | D．fun |
It was _____ who telephoned me yesterday.
| A．him | B．his | C．himself | D．he |
--- Oh, it’s you! I ______ you.
--- I’ve just had my hair cut and I’m wearing new glasses.
| A．didn’t realize | B．didn’t recognize |
| C．didn’t remember | D．didn’t tell |
The place was flooded ________ it had been raining for several weeks.
| A．because | B．because of | C．ever since | D．as a result of |
In the past 10 years people have become more______ the safety of their privacy.
| A．worrying about | B．cared about |
| C．concerned about | D．paid attention to |