. ___________ for several weeks, the city needed food.
| A．As having flooded | B．being flooded | C．Having been flooded | D．To flood |
I've worked with children before, so I know what__________ in my new job.
| A．expected |
| B．to expect |
| C．to be expecting |
| D．expects |
Get down to the experiment right away if possible,__________ you will not finish it before dark.
| A．and |
| B．but |
| C．or |
| D．while |
---What do you think made Mary so upset?
--- ______ her new bike.
| A．As she lost |
| B．Lost |
| C．Losing |
| D．Because of losing |
Mr Reed made up his mind to devote all he had to______ some schools for poor children.
| A．set up |
| B．setting up |
| C．have set up |
| D．having set up |
In some parts of London, missing a bus means ______for another hour.
A. waiting
B，to wait
C．wait
D. to be waiting