At the age of fifteen she gave up taking piano lessons to _____ her school work.
#65495
A
hold on
B
call on
C
put on
D
concentrate on
推荐题目
The forest guards often find campfires that have not been ____ completely.
#65598
A
turned down
B
put out
C
put away
D
turned over
He will _______ you next week if he is free. 
#65695
A
drop in
B
drop in at
C
drop in on
D
call at
This college ___ boys to enter the army as officers.
#75336
A
prepares
B
supplies
C
offers
D
gives