_____ doing more exercise to lose weight, many teenagers would rather be a couch potato.
| A．Instead of | B．As a result of |
| C．In spite of | D．Regardless of |
Not until he retired from teaching three years ago having a holiday abroad.
| A．he had considered |
| B．had he considered |
| C．he considered |
| D．did he consider |
Two lawyers have donated $50,000 to ________ our school's campaign "Help the Needy", whichwas started by our former headmaster three years ago.
| A．sponsor |
| B．launch |
| C．organize |
| D．plan |
The experiment shows that proper amounts of exercise, if regularly, can improve our health.
| A．being carried out |
| B．carrying out |
| C．carried out |
| D．to carry out |
This coastal area a national wildlife reserve last year.
| A．was named |
| B．named |
| C．is named |
| D．names |
The boy disappeared in the village five years ago and he ever since.
| A．was not heard of |
| B．is not heard of |
| C．hasn’t been heard of |
| D．hadn’t been heard of |