Is this the very material that scientists ______ the 2012 London Olympic Games torch?
The boy student is poor in health now; his parents wish that his health _____when he grows up
Don’t enter the office unless _______.
Can you find a sentence situation ___ this phrase can be used?
---I think you should telephone Jenny and say sorry to her.----______________. It’s her fault.
Trust him please! When he _______ reading it, he will return the book to you on time.