We believe the time and hard work _______ in completing such an important project are worthwhile.
| A．involved | B．involving |
| C．to involve | D．to be involved |
I don’t become a serious climber until the fifth grade, ______ I went up to rescue a kite that was stuck in the branches of a tree.
| A．when | B．where |
| C．which | D．Why |
ourselves from the physical and mental tensions, we each need deep thought and inner quietness.
| A．Having freed | B．Freed |
| C．To free | D．Freeing |
Generally, students’inner motivation with high expectations from others_________ essential to their development.
| A．is | B．are |
| C．was | D．were |
It’s standard practice for a company like this one______ a security officer.
| A．employed | B．being employed |
| C．to employ | D．employs |
There is a note pinned to the door______ when the shop will open again.
| A．saying | B．says |
| C．said | D．having said |