While _______ out of the window, I saw my father walking the dog in the garden.
| A．look | B．looking |
| C．looked | D．having looked |
Of all __________ reasons for my decision to become a university professor, my father’s advice was __________ most important one.
| A．the; a | B．不填; a | C．不填; the | D．the; the |
— I knocked over my coffee cup. It went right over __________. — You shouldn’t put drinks near __________ computer.
| A．the; 不填 | B．the; a | C．a; 不填 | D．a; a |
Everybody thinks little of the film．In fact，there is no__ of it being tried out in the film festival．
| A．sign | B．use | C．possibility | D．doubt |
Giving small children some money as a gift during the Spring Festival is a common ______ in China, which may seem strange to foreigners?
| A．sense | B．practice | C．ground | D．habit |
What the expert has said and done will be _______ to the department managers.
| A．value | B．benefit | C．of valuable | D．of benefit |