(  ) 1.She often goes to the park on weekends,but _____she goes to the movies.

A some  time   B sometimes   C sometime   D some  times

(  ) 2.Mrs Brown had to sit down and rest _____ five minutes.

A each    B every    C never    D often

(  ) 3.They didn't go to bed _____the work was finished.

A when    B while    C until    D after