21. The driver was at ________ loss when ________ word came that he was forbidden to drive for speeding.

A. a; the                     B. /; /                         C. the; the                    D. a; /

22. Our house is very ________ for me as I can get to the office in five minutes. In fact, this is the reason why I decided to buy it a week ago.

A. adaptable                                                           B. comfortable      

C. Convenient                                                         D. available