John is 45kg.Mike is 50 kg.We can not say:
A.Mike is bigger than John.
B.Mike is thinner than John.
C.Mike is stronger than John.
( )—__________ you at home yesterday?
—No, I ___________.
| A．Are；am not | B．Did；didn’t |
| C．Was; weren’t | D．Were; wasn’t |
( ) The doctor often tells him __________ more exercise.
| A．to take | B．taking | C．taken | D．Take |
( ) You should ___________ your little brother when your mother is out.
| A．look at | B．look for | C．look after | D．look up |
( ) Sometimes walking is __________ than driving during the busy traffic time.
| A．fast | B．faster | C．slow | D．slower |
( ) My sister was born _____________ a Friday morning.
| A．in | B．On | C．at | D．for |