—I would like to buy an expensive camera.
—Well.We have several models________.
A．to choose from B．of choice
C．to be chosen D．for choosing
The little boy still needs the________20 dollars to do with some things________.
A．remaining；remained to be settled
B．remaining；remaining to be settled
C．remained；remained to settle
D．remained；remaining to settle
________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
