摘要：23．It seems as if the sun round the earth since it rises in the east and sets in the west. A．circles B．were circling C．has been circling D．is circling
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It seems as if the sun ____ round the earth since it rises in the east and sets in the
west.
west.
[ ]
A. circles
B. is circling
C. has been circling
D. were circling
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B. is circling
C. has been circling
D. were circling