Alice, please turn down the music, I ________ an important phone now.
A. answer B. answered
C. have answered D. am answering
This math problem isn’t so difficult that I can work it out ________.
A. easily B. usefully
C. loudly D. quietly
Don’t ________ the chance when you can catch it, or you will regret.
A. guess B. miss
C. remember D. allow
—Are you clear about the job of a policeman, Ben?
—Yes, to keep people ________ and the society in good order.
A. busy B. safe
C. lucky D. healthy
The earlier kids learn to be independent, the ________ it is for their future.
A. good B. well
C. better D. best
It’s a good habit to wash your hands ________ you have meals.
A. unless B. while
C. when D. before
