1/ The boys practise _______ the ball into the net every day.
A. throw
B. throwing
C. to throw
D. to throwing
2/ They should have given a second _______ to the risks involved when discussing the problem.
A. think
B. thought
C. thinking
D. thoughtful
3/ You should not _______ a phone call while there is a lesson in the classroom.
A. go
B. do
C. make
D. ring
4/ It was a period characterized _______ political and cultural instability.
A. through
B. in
C. to
D. by
5/ Some very young children have _______ serious crimes recently.
A. committed
B. secured
C. expressed
D. invited
6/ The team raised so _______ money that the fund was incapable of paying the total fee.
A. little
B. less
C. few
D. fewer

