Many medical workers are busy ________ their work during lunch time.
| A． |
to |
B． |
of |
C． |
from |
D． |
with |
---Can you give me______ information about Paris?
---Sorry, I know nothing about it.
| A．an | B．some |
| C．any | D．many |
The girl is only two years old. She is _______ to go to school.
| A．old enough | B．young enough |
| C．too old | D．too young |
—Maria likes singing. Do you often hear her _______ after class?
—Yes, I do.
| A．sing | B．to sing | C．sings | D．sang |
—Would you mind _______ in the classroom?
—Sorry, I won’t do that again.
| A．not running | B．don’t run |
| C．not to run | D．to not run |
The Changjiang River is one of ________ in the world.
| A．the longest river | B．the longest rivers |
| C．the longer river | D．longest river |