---Could I use your computer for a while?
--- _______. Go ahead.
| A．No wonder | B．By all means |
| C．With pleasure | D．My pleasure |
The children, _____ had played the whole day long, were worn out.
| A．all of what | B．all of them |
| C．all of whom | D．all of which |
——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 |