________the working efficiency，the boss allows the employees to have a coffee break.
A．Improving B．To improve
C．Having improved D．Improved
Could you show me the TV set you’d like________？
A．to have repaired B．repairing it
C．to have it repaired D．to repair it
Little Bob is often educated by his parents to be good and friendly to anyone even if ________.
A．attacking B．is attacked
C．to be attacked D．attacked
________twice a year，whether it is a car or a bus or a truck，is the rule that every driver must obey in this city.
A．Examining
B．Examined
C．Being examined
D．Having been examined
Yesterday a streetbeggar bought a lottery ticket purposelessly，________him a millionaire overnight.
A．making B．makes
C．to make D．made
Now that we’ve discussed our problem，are people happy with the decisions ________？
A．taking B．take
C．taken D．to take
