.Some teenagers         to do some voluntary work during the school holidays..
#54612
A
offered
B
provided
C
supplied
D
got
推荐题目
Today is my birthday and my mother _______ a cake _______ me.    
#61476
A
making, to
B
is making, for
C
is doing, to
D
doing, for
 If you work hard and never __________, you will learn maths well.
#54137
A
put up
B
pick up
C
give up   
D
grow up
She ought to stop _______. She has a headache because she _______ too long.
#60581
A
to work, was reading
B
to work, has read
C
working, has read
D
working, read