Q600
A: Are Peter and Mary still sitting in the office? B: No, . . . . . . . .
A.
they don't sit
B.
they standing
C.
there aren't
D.
they aren't
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
'they aren't', is correct as it is grammatically correct and also indicates that presently Peter and Mary are not sitting in the office.