Some of you may have finished unit one. _____ , you can go on to unit two. 
| A．If you may | B．If you do | C．If not | D．If so |
----Will ______be _______to pick me up at 8:00am. at the airport on Sunday?
-----No problem. You can call me at any time.
| A．you; convenient | B．it; convenient for you |
| C．it; convenient of you | D．it; convenient with you |
The message is very important, so it is supposed _______as soon as possible.
| A．to be sent | B．to send | C．being sent | D．sending |
He was _____ by his grandparents, so his parents seemed to be strangers to him.
| A．brought out | B．brought down | C．brought in | D．brought up |
Mr. Smith was thinking about how to explain to the manager why he was late for work, when a good idea ______ to him.
| A．happened | B．brought | C．occurred | D．struck |
___________ he has limited technical knowledge, the old worker has a lot of experience.
| A．Since | B．Unless | C．As | D．Although |