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The hospital is new _____ very dirty.
A．and B．or C．so D．but
I don’t like pizza ______sandwiches.
A．and
B．or
C．but
D．so
Hurry, _____ we shall be late for school.
A．and B．or C．but D．so
You may watch TV this evening, _____ you must finish your homework first.
A．so B．or C．and D．but