— You look scared. What happened?
— Well , I _______ along the street ________ the UFO landed.
| A．was walking ; while | B．is walking ; when |
| C．was walking ; when | D．is walking ; while |
________ city would you like to live in, Beijing，Shanghai or Chongqing?
| A．Where | B．Which | C．What | D．Whose |
If prices rise too high, the government has to do something ______ it．
| A．stop | B．stopped | C．stopping | D．to stop |
— How long have you _______ this book?
— About ten days．I _______ it last month．
| A．bought, bought | B．bought, buy |
| C．had, bought | D．had, have bought |
— When will the second class begin?
— _________ two minutes．
| A．For | B．In | C．At | D．After |
— I’m sorry I can’t find the library book anywhere．
— So…I’m afraid you have to _________ it．
| A．send for | B．thank for |
| C．pay for | D．wait for |