---Do you think the weather will be all right this summer?---No, _____ we are lucky. The newspaper says it'll be very hot anyway.A.ifB.thoughC.unlessD.as
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C解析连词辨析。Unless=if…not除非，如不；no代替一个否定句。结合句意可知C正确。句意：—你认为今年夏天的天气会好吗？—如果我们运气不好，今年夏天的天气会很不好。报纸上说将会很热。