--I'm sorry I made a mistake!
-- . . Nobody is perfect.
| A．Take your time | B．You're right |
| C．Whatever you say | D．Take it easy |
—I think that every need of the customer should be attended to.
—________.
| A．I'd love to | B．I'm with you on that |
| C．It's my pleasure | D．It's up to you |
No matter how healthy you ________ be, you need to consult a doctor from time to time.
| A．should | B．will | C．must | D．may |
Many dog owners treat their pets like human beings, ________ if they do not have children of their own.
| A．absolutely | B．especially |
| C．eventually | D．extremely |
I really don't know how to thank you, but for your help, I ________ my lost necklace.
| A．couldn't have found | B．mustn't have found |
| C．couldn't find | D．wouldn't find |
After ________ seemed an endless wait, it was her turn to enter the interview room.
| A．what | B．why | C．that | D．how |