Choose the most acceptable sentence.
AYou had better to consult a doctor.
BYou had better to consulted a doctor.
CYou had better consulting a doctor.
DYou had better consult a doctor.
AYou had better to consult a doctor.
BYou had better to consulted a doctor.
CYou had better consulting a doctor.
DYou had better consult a doctor.
Related Questions:
Identify the segment of the sentence which contains an error. If there is no error, mark "No error" as your answer.
This is the more difficult problem I have ever solved.