﹣You've dropped "s" in the word" necessary".
﹣Oh, letter"s"is doubled.( )
A.a; aB.a; theC.an; theD.the; the
I like teachers who (be)always friendly, helpful and fair to each student.
Our geography teacher told us the moon (circle) the earth every 28 days.
David asks the volleyball star. Cindy Smith, about her (eat)habits.