takes
is taking
took
taken
Answer is Right!
Answer is Wrong!
The correct answer is C. took.
The sentence is in the past tense, so the verb must also be in the past tense. The other options are not in the past tense.
A. takes is in the present tense.
B. is taking is in the present progressive tense.
D. taken is the past participle of the verb take.
The past tense of take is took.
He took an aspirin half an hour ago.