1. This is a group of six boys ________ 14 to 17.
A. aged
B. ages
C. aging
D. age
2. We hurried on, our heads ________ against the wind, to the bright light ahead.
A. being bent
B. bent
C. was bent
D. was bending
3. After several months' study, I was able to easily read Japanese novels in the ________.
A. origin
B. reference
C. source
D. original
4. He has recently ________ golf for relaxation.
A. taken up
B. taken with
C. taken on
D. taken over