—There is only 15 minutes left for work. What shall we do?—My God!There are always not any taxis when you want_______
As far as I know, this maths problem is _______________ that one.
. Tom as well as his classmates __________ a song when the teacher came into the classroom.
. Only when your identity(身份) has been checked, _____________________.
Edward, you play so well. But I ________ you played the piano.
. She would rather ________ the difficult situation in the new neighbourhood than move back.