________ fathers are both doctors.
A. Jim's and Bob's B. Jim's and Bob
C. Jim and Bob's D. Jim and Bob
Please __________ the light when you leave the classroom.
A. turn on B
.
turn up C. turn off D.
turn down
When you go _________ the street, you must be careful.
A. crossing B. cross C. across D. pass
I ______ an hour finishing my homework yesterday.
A. cost B. paid C. spent D. took
The shoes are beautiful. Please ___________
A. try it on B. try on it C. try them on D. try on them
You are too tired, please stop _______.
A .to work B. work C. working D. worked
