It is not enough only_____the rules of grammar if you want to learn English well.
----Jimmy, shall I give you a ride as you live so far away? ----Thank you very much. __________.
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.