vegetable oil has______ (know)since very old times
Answers
Answered by
1
Answer: Vegetable oil has been known since very old times.
Correct me If I am wrong.
Answered by
0
Answer:
has been known
Explanation:
Whenever time periods are specified with since/ for, it is advised to use the perfect continuous tense.
has/have/had + been + past form of verb ( here the verb is 'know' )
Similar questions