__________ , some students tend to develop a range of unhealthy habits .
| A．Parents don’t watch over them | B．Not having watched over |
| C．With no parents to watch over them | D．Parents watched over |
--Shall we discuss the problem at the meeting today?
---We’d better not. ,the problem isn’t so burning. What’s more, the manager won’t be back until tomorrow.
| A．Begun with | B．Beginning with | C．To begin with | D．Being begin with |
---Shall we go swimming? ---Ok, I’ll just go and get .
| A．changed | B．to change | C．to be changed | D．changing |
. With the weather conditions , they flew to London immediately.
| A．considered | B．considering | C．to consider | D．to be considered |
for the terrible accident, as the public thought, the major felt nervous and at a loss what to do.
| A．Having blamed | B．To blame | C．Being to be blamed | D．Being to blame |
Which do you enjoy your spare time, playing cards at home or taking a walk in the park?
| A．spending | B．to spend | C．having spent | D．to have spent |