— Mr. Lee ____ to a student when I entered the classroom this morning.
-- He is very patient ____he is young.
| A．talking; but |
| B．talks; though |
| C．was talking, though |
| D．talked, however |
【2013盐城】The house is very nice. Has it got ________ garden?
| A．/ | B．a | C．an | D．the |
【2013十堰】－This is a useful dictionary, I think.
－So it is, and it’s ______ unusual one.
| A．the | B．an | C．a | D．不填 |
【2013东营】This is 3-D printer. And this is an artificial (人工的) ear. Can you believe that scientists printed this artificial ear by this 3-D printer?
| A．a | B．an | C．the | D．/ |
【2013福州】 — What's in the box?
—There is apple and some oranges in it.
A. a B. an C. The
【2013兰州】Do you know a spaceship flies at about nineteen kilometers _______ second?
| A．the | B．a | C．/ | D．an |