Because of ______ high demand for Type AB blood, ______ supplies of it are usually limited.
| A．the; the | B．不填; 不填 | C．不填; the | D．a; the |
She cut the cloth with _____ scissors.
| A．a couple of | B．a pair of | C．two | D．a |
It is reported that _________ schools are improving their IT environment.
| A．a great many | B．a great deal | C．a large amount of | D．a large part of |
He became famous ______.
| A．in the sixties | B．in the sixty | C．in sixties | D．in sixty |
Next door to ours _____, who has just retired from work.
| A．where lives an old man | B．where does an old man live |
| C．lives an old man | D．does an old man live |
So _____ that modern industry cannot develop without it.
| A．electricity is important | B．important is electricity |
| C．electricity important is | D．important electricity is |