_____ on time, this medicine will be quite effective. 
#98764
A
Taking
B
Being taken
C
Taken
D
Having taken
推荐题目
Five books on the shelf are found ______.
#96962
A
tear
B
tearing
C
tore
D
torn
It is careless ___ such a mistake.
#98664
A
of you to make
B
of your making
C
for you to make
D
for your making