--I don't think we have met before.
--Yes, once at a party, but we___________.
| A．weren't introduced | B．didn't introduce |
| C．haven't introduced | D．were not introducing |
— The winner of the race is a tall and thin boy with thick glasses.
— Then it ________ be my friend, Mike, who looks like a "meat ball".
| A．mustn't | B．can't | C．might | D．should |
— Why not take my car to the museum instead of walking? — No, thanks. ________.
| A．I'm used to | B．I'm able to | C．I'm about to | D．I've got to |
The thing that ________ is not whether you fail or not, but whether you try or not.
| A．cares | B．minds | C．matters | D．depends |
— Why weren't you at school yesterday morning, Li Lei? — ________, sir.
| A．Yes, I was | B．No, I was | C．Neither was I | D．But I was |
.If the launch in 2005 is successful, China will be the third country ________its astronauts into space.
| A．will send | B．having sent | C．sending | D．to send |