—What’s the matter with John? He has been sitting there for hours.
—A postcard from his father _____ an attack of home-sickness in him.
| A．took up | B．set off | C．brought in | D．built up |
________the news that her beloved mother died in the car accident，tears came into her eyes.
| A．After hearing |
| B．When she heard |
| C．On hearing |
| D．Having heard |
Sam has been appointed ________ manager of the engineering department to take ________place of George.
A. /，/
B．the，/
C the，the
D．/, the
It is your attitude, rather than your aptitude（天资）, ________ determines your altitude．
| A．which | B．that | C．what | D．who |
The birds that will spend the whole winter here have been digging holes in the snow _______ from the cold weather．
| A．to shelter | B．sheltered |
| C．having sheltered | D．sheltering |
The cultural background of China is totally different from ________ of the US．
| A．one | B．that | C．these | D．those |