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
_____ are written _____ English.
#81461
A
Many a books; in
B
Many of the books; with
C
Many of the books; in
D
Many the books; with
The students in the university are all taking courses______ a degree.（2010·01·山东烟台检测）
#72781
A
sticking to
B
leading to
C
turning to
D
referring to
Many students believe the choice of their courses and universities should____ __ their own interest.
#66293
A
be based on
B
base on
C
be basing on
D
base at
Everybody showed great respect to the old doctor, who devoted everything he had to __________ the poor conditions of the local hospital.
#70582
A
improving
B
improve
C
to improve
D
being improved