I was telling them about my tour ________she broke in with her own story about her visits to Beijing.
| A．after |
| B．when |
| C．as |
| D．before |
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 |
Had I known the party was so boring, I wouldn’t have come. I __anything.
| A．hadn’t done | B．haven’t done | C．didn’t do | D．wouldn’t do |
When Marx was in London, he __read at the library for hours.
| A．would | B．might | C．could | D．should |