________ from endless homework on weekends, the students now find their own activities, such as taking a ride together to watch the sunrise.
| A．Freed | B．Freeing | C．To free | D．Having freed |
—What are you anxious about?
—_______.
| A．How can we succeed | B．Whether we can succeed |
| C．When can we succeed | D．That we can succeed |
The boss refused to sell the car for ________ he thought was not satisfactory.
| A．that | B．which | C．how | D．what |
―The river runs clear.
―We all appreciate the importance the local government has_______ the environmental protection.
| A．attached to | B．left for |
| C．responded to | D．learnt from |
Be careful that a good name of a product doesn’t _______ mean good quality of it.
| A．alternatively | B．approximately | C．obviously | D．necessarily |
What we all know is that the old scientist, _______ life was hard in the past, still works very hard in his eighties.
| A．for whom | B．for him |
| C．for whose | D．for which |