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 |
The best way to deal with these bad habits is not to _______ the habit in the first place.
| A．get into | B．come into | C．knock into | D．run into |
_______ is better to love than _______.
| A．That; to be loved | B．That; be loved | C．It; be loved | D．It; to be loved |
The girl being a child of _______ intelligence, expecting too much of her would make her nervous.
| A．average | B．slight | C．strange | D．different |
---We haven’t been to Hangzhou for ages.
---No, I don’t remember how many years ago _______ I last visited it.
| A．it was that | B．was it that | C．it was when | D．was it when |
A good plan must be _______, so that it can adapt to some necessary changes.
| A．flexible | B．convenient | C．specific | D．considerate |