The sun rises in the east and sets in the west, so it seems as if the sun __________ round the earth.

A. were circling　 B. circles　　 C. is circles　　　 D. be circling

The sun rises in the east and sets in the west, so it seems as if the sun ________ round the earth.

1. A.
   were circling
2. B.
   circles
3. C.
   is circling
4. D.
   be circling

The sun rises in the east and sets in the west, so it seems as if the sun ________ round the earth.

[　　]

The sun rises in the east and sets in the west, so it seems as if the sun ________ round the earth.

[　　]

The sun rises in the east and sets in the west，so it seems as if the sun__________round the earth.

A.were circling                                  B.circles

C.is circling                                       D.be circling