often takes him an hour to do his homework.

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 ___?