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 absorbed in 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
