.
Some companies have introduced flexible working time with less emphasis on pressure ____.
| A．than more on efficiency | B．and more efficiency |
| C．and more on efficiency | D．than efficiency |
Only then ___________ to answer violence with violence.
| A．we decided | B．did we decide |
| C．decided we | D．were we decided |
However, this was a time _________one had got to have a passbook to live in Johannesburg.
| A．when | B．where | C．which | D．why |
exam
| A．explain | B．expect | C．example | D．expensive |
change
| A．technical | B．machine | C．research | D．stomach |
teacher
| A．great | B．heavy | C．idea | D．mean |