Jack is _____ busy ______ he often forgets to havebreakfast.

Don’t smoke any more. It’s bad for your health.—I’m trying to ________.It’s really hard, you know.

I don’t understand how you got a ticketI always _____ you _____ a careful driver

____ old man behind Tom is _____ university teacher.

ung man, go and _____ some water forus, will you