In order not to be disturbed, I spent three days_______ up in my study.
| A．locking | B．being locked | C．to look | D．locked |
Tom always goes jogging in the morning and he usually does push-ups too to stay ________.
| A．in place | B．in order | C．in shape | D．in fashion |
-How much do you know about the Youth Olympic Games to be held in Nanjing?
-Well, the mediait in a variety of forms.
| A． | cover | B． | will cover | C． | have covered | D． | covered |
The book has helped me greatly in my daily communication, especially at work ________ a good impression is a must.
| A．which | B．when | C．as | D．where |
Lessons can be learned to face the future, ________ history cannot be changed.
| A．though | B．as | C．since | D．unless |
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 |