—What were you up to when she dropped in?
—I _________ for a while and __________ some reading.
| A．was playing; was going to do | B．played; did |
| C．had played; was going to do | D．had played; did |
—This is a really lively party.There's a great atmosphere，isn't there?
—________.The hosts know how to host a party.
| A．Don't worry | B．Yes，indeed |
| C．No，there isn't | D．It all depends |
—How far can you run without stopping?
—________.I've never tried.
| A．Don't mention it | B．That's all right |
| C．I have no idea | D．Go ahead |
—Would you mind answering some questions on shopping habits?
—________.
| A．Yes，with great pleasure |
| B．No，I am afraid I can't make it |
| C．Yes，it is worth the time |
| D．No，as long as it doesn't take long |
Whatever he does，once he sets up a goal，he will start pursuing it without ________.
| A．hesitation | B．suggestion |
| C．discussion | D．decision |
As is well－known，the brain performs a very important ________，which controls the nerve system of the body.
| A．motion | B．action |
| C．function | D．fact |