This is _____ best kind of _____ pen you can get here.
| A．the, the | B．the, a | C．the, 不填 | D．a, the |
He allowed me ____ the experiment.
| A．to do | B．do | C．doing | D．did |
They looked ___ at the news, and some girls began to weep.
| A．sad | B．sadly | C．sadness | D．sadnessly |
There is no light in the room.They ____asleep.
| A．should have gone to | B．must be | C．could go | D．might be going |
Mrs Smith was very ill.The doctor said she was ___ of death.
| A．at the edge | B．at edge | C．on edge | D．on the edge |
Mrs Smith was very ill.The doctor said she was ___ of death.
| A．at the edge | B．at edge | C．on edge | D．on the edge |