A driver should __________ the road when __________.
| A．concentrate on; drive | B．concentrate in; driving |
| C．concentrate to; drove | D．concentrate on; driving |
______ not to miss the flight at 15:20, the manager set out for the airport in a hurry.
| A．Reminding | B．Reminded | C．To remind | D．Having reminded |
The last letter ____ arrived yesterday morning left him______ very sad.
| A．which; feel | B．which; to feel | C．that; feeling | D．/; felt |
There is nothing to get________ about for it is common in our daily life.
| A．to alarm | B．alarming | C．alarmed | D．being alarmed |
____ anyone phone during the board meeting, please tell them I am busy.
| A．Should | B．Will | C．May | D．Can |
Tom Hopper got his work _____ in the filming industry for his film had been crowned best picture at the Oscars.
| A．to recognize | B．recognizing | C．recognize | D．recognized |