(    )89. --I saw Betty go to Grandpa Li's home just now.

          --Yes. She’s often seen _________ the old man with the housework..

            A: help          B. to help        C. helps          D. helped

 (    )89. Can you tell me ________?

A. what are they doing that for   B.why they are doing for

C. why are they doing that        D. what they are doing that for

In 89 BC, Pompeii became a rich and busy city and near the city ____ a volcano.

1. A.
   be
2. B.
   being
3. C.
   had
4. D.
   Was

In 89 BC, Pompeii became a rich and busy city and near the city ____ a volcano.