--Who is the person talking with you just now?
-- Well, if you ______ know, his name is David.
| A．may | B．can | C．must | D．shall |
Jim as well as his friends ______ to blame for breaking the door last week.
| A．were | B．is | C．was | D．are. |
In some parts of London, missing a bus means __________ for another hour.
| A．waiting | B．to wait | C．wait | D．to be waiting |
The Browns held _____ they called "family day" once each year.
| A．that | B．what | C．which | D．when |
They didn’t know who it was that had ______ to the public when the president would set out for that country.
| A．stayed away | B．given away | C．gone away | D．run away |
—Tom, do you think that swimming does good to our body?
—Yes. A lot of good, ______.
| A．no wonder | B．no way | C．no doubt | D．no more |