.How beautifully she sings! I have never heard _______ voice.
| A．the best | B．a best |
| C．the better | D．a better |
Seven _________ workers work in that factory.
A. thousands of B. thousands C. thousand
There are many _________ on the table.
A. potato B. water C. potatoes
His father is ________ English teacher in Liuzhou.
A. a B. an C. the
------- Is pork healthy food or unhealthy food? ---------- ____________.
A. Yes, it’s healthy food B. It’s healthy food C. No, it isn’t
------- Are there __________ computers in the classroom?
-------Yes, there are ________.
A. a , some B. some , any C. any , some