Riding bicycles makes us ___________.
A. to keep healthy B. keep health C. keep fit
Which subject is _____ ， physics or chemistry ?
| A．interesting | B．most interesting |
| C．more interesting | D．the most interesting |
Li Lei's parents ______ doctors.
| A．are all | B．are both | C．all are | D．both are |
Your bag is smaller than______.
| A．his | B．his's | C．him | D．their |
Who cleaned the classroom just now? Tom .
| A．cleaned | B．does | C．was | D．did |
Don’t read in bed ， it’s not ____ your eyes.
| A．good for | B．bad at | C．bad for | D．good at |