— Do you like Nack?
— Yes, Nack is good, kind, hard-working and intelligent; __________, I can’t speak too highly of him.
| A．as a result | B．in short | C．by the way | D．on the contrary |
Returning to the room, _____.
| A．the book was lost | B．I found the book missing |
| C．the book was missing | D．I found the losing book |
_________ in the fields on a March afternoon，he could feel the warmth of spring．
| A．To walk | B．Walking |
| C．Walked | D．Having walked |
He was busy writing a story，only _________ once in a while to smoke a cigarette．
| A．to stop | B．stopping |
| C．to have stopped | D．having stopped |
_________ the project as planned，we’ll have to work two more hours a day．
| A．Completing | B．Complete |
| C．Completed | D．To complete |