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 realizedyjw |
If you love someone, why ______ you chain him to your side, control his emotion, and even make him center on you?
| A．must | B．dare | C．need | D．will |
Some people have no idea that by helping a criminal they could ________with a prison sentence.
| A．come up | B．end up | C．put up | D．catch up |
Will you please also state your earliest delivery date, your terms of payment, and discounts for regular _______?
| A．supplies | B．sales | C．purchases | D．accounts |
Don't ______ to spring-clean the whole house just because my mother is coming---there's no need to do that.
| A．undertake | B．attempt | C．bother | D．hesitate |
My husband________ a model plane the whole Sunday morning. I thought he would help do some washing.
| A．has made | B．made | C．was making | D．had made |