“I called you yesterday. A woman answered, but I didn’t recognize her voice.” “Oh, it _____ my aunt Jean.”
| A．must be | B．must have been |
| C．might be | D．can have been |
_______ you sit in front of the computer all day while working, you’d better take exercise for at least an hour every day.
| A．Even if | B．Even though | C．Now that | D．As if |
Our company is searching for a designer, especially ______ with creativity(创造力).
| A．the one | B．that | C．one | D．those |
In order to finish the research, the professor always _______, for every day the light in hisroom didn’t go out until 4 a.m.
| A．mixed up | B．cleaned up | C．turned up | D．stayed up |
I haven’t been home to see my parents for two weeks; I _______ them.
| A．can’t wait see | B．can’t wait to see |
| C．can wait for | D．couldn’t wait for |
I regret __________ you that we’ll have to stop the sports meeting because of the bad weather.
| A．telling | B．to tell | C．having told | D．to have told |