- When 
did your parents _______? - They _______ for 20 years.
A. marry.; got married B. get married; have got married:
C. marry; have got married D. get married; have been married
-_______ do I save the document on the computer?
- Please click 'save' and write a name for it.
A. What's B. How C. When D. Where
My sister spends as much time as she can_______.
A. practicing to danceB. practice to dance
C. practice dancingD. practicing dancing
His sister's never been to the Summer Palace, _______?
A. is she B. has she C. hasn't she D. isn't he
How careless you are! You_______ more careful next time.
A. can be B. should be C. may be D. would be
The highway from Zunyi to Renhuai ________for about two years.
A. has opened B. has been open C. has been opened D. opened
