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It looks ______ you are ill.You should go to see the doctor.()
A.as
B.as though
C.as well
D.even though
B
考查连词.as连词"当…的时候,因为";as though"好像,仿佛";as well"也";even though"即使".根据句意:你看起来好像是病了,你应该去看医生.所以答案选B.