After running a 1000-metre race, he was________.
| A．out of breathe | B．breathed heavily |
| C．took a deep breath | D．out of breath |
Great changes _________ in Nanjing since the1990s.
| A．took place | B．were taken place |
| C．have taken place | D．have been taken place |
My mother _________ a history teacher.
| A．used to being | B．is used to being |
| C．used to be | D．is used to be |
–Have you finished your homework?
– _________ . Just half of it. How about you?
| A．Not at all. | B．Not likely. |
| C．Not a bit. | D．Not yet. |
– _________ you ________ your lost football?
_Yes, I have. I _________ it an hour ago.
| A．have found; found | B．Did find; found |
| C．have found; have found | D．Did find; have found |
Though he __________ the book three times, he hopes to read it again.
| A．read | B．reads |
| C．has read | D．would read |