No matter how frequently＿＿，the works of Beethoven still attract people all over the world.
| A．performed | B．performing |
| C．to be performed | D．being performed |
We will visit the town ____ name I have heard of.
| A．whose |
| B．which |
| C．that |
| D．where |
It was the key to the door that they ____ yesterday.
| A．searched for |
| B．looked out |
| C．watched out |
| D．went into |
We were completely ____ at the wonder and the greatness of nature.
| A．amazed |
| B．worried |
| C．moved |
| D．pleased |
To our surprise, he ____ the big earthquake in the basement where
he stayed for 7 days without anything to eat.
| A．escaped |
| B．struggled |
| C．avoided |
| D．survived |
He is wasting ____ time during this important period in his life.
| A．worthless |
| B．valueless |
| C．valuable |
| D．necessary |