often takes him an hour to do his homework.
it often takes him an hour to do his homework.
he often ___ an hour ___ his homework.
my faxourite subject is _english_.（对划线部分提问）
___ ___ your favourite subject?
it is _may 1_ today.（对划线部分提问）
___ ___ ___ today?
she is _our english teacher_?（同上）
___ ___ she?
the meeting begins _at three o'clock today_.（同上）
___ ___ the meeting ___?