An idea came to him ___ he might do the experiment in another way.
| A．which | B．when | C．what | D．that |
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 |
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 |