My doctor advised me to reduce the amount of sugar ______ to the milk I drink.
| A．add | B．to add | C．adding | D．added |
__________ the Civil War, the university opened its door again and has been open ever since.
| A．To follow |
| B．Followed |
| C．Following |
| D．Having been followed |
The old couple often take a walk after supper in the park with their pet dog __________ them.
| A．to follow |
| B．following |
| C．followed |
| D．follows |
Strong typhoons hit the area very __________. Normally, they form and come here between July and August every year.
| A．generally |
| B．regularly |
| C．usually |
| D．suddenly |
Lots of rescue workers were working around the clock，__________ supplies to Yushu, Qinghai Province after the earthquake.
| A．sending |
| B．to send |
| C．having sent |
| D．to have sent |
I tried phoning her office, but I couldn't __________.
| A．get along |
| B．get on |
| C．get to |
| D．get through |