-- I think we have met somewhere. -- Was it ____ Monday in May ? And thank you for ____favor you did me fixing my flat tire. A a, a B the . the C a , the D the , a
—Do you have anything planned for this afternoon? —Yes. I’m going to ________a famous NBA player.
You needn’t go to the railway station by taxi because it is within walking ________.It only takes five minutes to walk there.
The professor ________at 8 o’clock,but he has not shown up yet,which worries all of us.
The manager was concerned to hear that two of his trusted workers ______.
He got himself into a difficult situation ________he must make a final decision all by himself.