---Why was it ______ you were so angry?---Because we failed to take part in the basketball match.
----Will ______be _______to pick me up at 8:00am. at the airport on Sunday? -----No problem. You can call me at any time.
The message is very important, so it is supposed _______as soon as possible.
He was _____ by his grandparents, so his parents seemed to be strangers to him.
Mr. Smith was thinking about how to explain to the manager why he was late for work, when a good idea ______ to him.
___________ he has limited technical knowledge, the old worker has a lot of experience.