Uncle John was about to show me how to swim suddenly a loud noise came to us.
| A．when |
| B．before |
| C．that |
| D．then |
Alice didn’t want her parents to know .
| A．what has she done | B．what was she doing |
| C．how she had done | D．what she was doing |
It took building supplies to construct these energy-saving houses. It took brains, too.
| A．other than | B．more than | C．rather than | D．less than |
The work was difficult, but Tom’s expression showed that he would finish it in time.
| A．stubborn | B．determined | C．concerned | D．surprised |
Every evening after dinner, if not from work, I will spend some time walking my dog.
| A．being tired | B．tiring | C．tired | D．to be tired |
—I’m sorry. I at you at the other day.
— Forget it. I was a bit out of control myself.
| A．shouldn’t shout | B．shouldn’t have shouted |
| C．mustn’t shout | D．mustn’t have shouted |