He is going to be a scientist when he________.
A. grows up B. grow up
C. is going to grow up D. grew up
The college principal promised ________ the matter.
A. look into B. to look into
C. looking into D. looked into
The boy is only five years old, but he ________ play the piano well.
A. able B. is able
C. be able to D. is able to
—Bob, can you tell us about your New Year's resolutions?
—I'm not________ about it yet.
A. relaxed B. interesting
C. sure D. worried
Linda works hard and she practices ________ English every day.
A. speak B. speaks
C. speaking D. to speak
It's not good to ask questions about one's ________life.
A. busy B. simple
C. personal D. healthy
