The population of the city ________from less than half a million in 1949 to over two million.
| A．have increased | B．has increased | C．have improved | D．has improved |
——Excuse me, but could I trouble you for some change?
——______. Will pennies do?
| A．I know | B．Let me see |
| C．I am sure | D．Never mind |
The accident caused some _____ to my car, but it’s nothing serious.
| A．harm | B．injury | C．ruin | D．damage |
Not until he went through real hardship ______ the love we have for our families is important.
| A．did he realize | B．had he realized |
| C．he realized | D．he had realized |
Old-fashioned phones matter when wireless networks _____ in disasters.
| A．turn down | B．break down | C．turn out | D．break out |
Michelle found a job as a high school teacher which _____ spending quite a lot of time with students.
| A．enjoys | B．practices | C．involves | D．suggests |