If George keeps on working so hard, he’ll ______ sooner or later.
| A．break down | B．break up |
| C．break out | D．break off |
His younger sister may already be in high school now, in ___ case this picture book is too childish for her.
| A．that | B．which | C．whose | D．what |
Jerry has promised to keep the secret, so he won’t tell anyone even though ______.
| A．asking to | B．to be asked | C．to ask | D．asked to |
So absorbedin the experiment that he didn’t even notice it was already over 12 o’clock.
| A．did he | B．he did | C．was he | D．he was |
___ children believe they can succeed, they will never become totally independent.
| A．Unless | B．Though | C．When | D．If |
an important role in a new movie, Andy has a chance to become famous.
| A．Offer | B．Offering | C．Offered | D．To offer |