1. Teachers recommend parents________their children under 12 to ride bicycles to school for safety.
A．not allow B．do not allow
C．mustn’t allow D．couldn’t allow
2. ________ herself with routine office tasks，she had no time to attend to her children.
A．Occupying B．Occupied
C．Being occupied D．To be occupied
3. Fully ________ in looking after four children at home，she no longer has time to enjoy the various activities in the club.
A．occupied B．contributed
C．hesitated D．devoted
