I won’t give my help ______ you will tell me the truth.
| A．unless | B．since | C．if | D．even though |
Not once has she given in to any difficulty in her life and that's _____ she is a strongwilled woman.
| A．why | B．when |
| C．because | D．where |
—How can I wake up so early?
—Set the alarm for 5 o'clock, ______ you'll make it.
| A．but | B．or |
| C．and | D．so |
at failing in the maths exam, John wouldn't like to talk about it to his parents.
| A．Disappointing | B．Having disappointed | C．Disappointed | D．To be disappointed |
It being Sunday, rather than ______ at home, I preferred _______.
A stay; to travel B to stay; to travel C stay; travel D to stay; traveling
Jumping out of ___ airplane at a height of 5000 kilometers is ___ unforgettable experience.
| A．an ; a | B．an ; an | C．an ; / | D．a ; an |