It was not until the subprime loan crisis（次贷危机） ____ great damage to the American financial system that Americans ____ the severity of the situation．
| A．caused, realized | B．had caused, realized |
| C．caused, had realized | D．was causing, had realized |
I don’t like the way ＿＿＿＿＿ you talk to your mother.
| A．／ | B．in that | C．which | D．of which |
We will have a meeting next week, but we don’t know ＿＿＿＿＿.
| A．who | B．where | C．as | D．which |
Be sure to be here early tomorrow, ＿＿＿＿＿?
| A．will you | B．aren’t you | C．can you | D．could you |
It’s a fine day. Let’s go swimming, ＿＿＿＿＿?
| A．won’t we | B．will you | C．don’t we | D．shall we |
He suggested that the work ＿＿＿＿＿ at once.
| A．be done | B．should do | C．could do | D．does |