If _____ without following the doctor’s instructions, the medicine may have serious side effects.
#91987
A
taken
B
to be taken
C
taking
D
being taken
推荐题目
 ________ all the homework assigned by the school, the students have to work at it till midnight.
#88763
A
Completing
B
To complete
C
Having completed
D
To have completed
With the boy _____ the way, we had no trouble _____ the way to lead to Zhongshan Park. 
#96705
A
leading; finding
B
to lead; found
C
led; finding
D
leading; to find
_____such heavy pollution already, it may now be too late to clean up the river. 
#97852
A
Having suffered
B
Suffering
C
To suffer
D
Suffered
-What has made him in such a low mood recently?—_________ by his father for not passing the exam.
#90707
A
Being criticized
B
Criticized
C
Having criticized
D
To criticize