Do you know a spaceship flies at about nineteen kilometers ________ second?
| A．the | B．a | C．/ | D．an |
—Can I use your bike for an hour? --_________.
| A．Glad to hear that | B．Not at all |
| C．That’s all right | D．No problem |
Mr Smith thought the Ceatury Park was the second _____________park in Shanghai.
| A．large | B．larger |
| C．largest | D．the largest |
The story_________is not boring.
| A．it | B．its |
| C．itself | D．it’s |
Jim,_________________read books while you are walking in the street. It’s vevy dangerous.
| A．doesn’t | B．can’t |
| C．don’t | D．won’t |
—Mum,could I go to play basketball with my friends?
--________.But don’t stay out late.
| A．Yes, you could | B．Yes, you can |
| C．No,you couldn’t | D．No,you can’t |