{01}We’ll have a picnic in the park this Sunday _________ it rains or it’s very cold.
A.since
B.if
C.unless
D.until
解析:该题考查考生对题干中两个句子含义的理解以及对选项中连词的掌握情况。由含义可知后句“那天下雨或寒冷”与前句“这周日去公园野餐”是条件与结果的关系,且为否定成立,故正确答案为D “如果不” 本题选C。 {02}My mother is always warning me when I go out, “Don’t get off the bus ____ it is stopping.”
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