Read each sentence to find out whether is there any grammatical error in it. The error if any part of the sentence, the option given in that part will be the answer.
You may left the class when you have completed the test.

Options

A. the class
B. when you have
C. completed the test
D. You may left

Answer

D

Explanation

The given sentence is in the present tense so it will have a verb in its present form( leave) and not in the past simple form(left). Hence, you may leave. will be answer.