Playing too many computer games _______ students.
A．is bad to B．is bad for C．are bad to D．are bad for
It's very important _______ us ______ every day.
A．for;exercise B．to;to exercise
C．for;to exercise D．to;exercise
--- ________ do you stay at home at weekends?
--- Ten hours.
A．How often B．What time C．How long D．When
Millie often _______ a very special costume at the party.
A．puts on. B．dresses up C．wears D．dresses
You can go to the library with _______ and ______ sister.
A．his;his B．him;his C．him;he D．he;his
I have ____ uncle in America. He is ______ English teacher.
A．a; an B．an;a C．an;an D．an;the
