题目

In such dry weather, the flowers will have to be watered if they _______.A. have survived B. are to surviveC. would survive D. will survive 答案:【答案】B【解析】考查时态。句意:在这样干燥的天气里,如果想要活下来,这些花就得浇水。在if引导的条件句中,用be to do表示将来,故B项正确。在0°、20°N、40°N、60°N四条纬线中,最长的一条是(  )A. 60°S B. 40°N C. 20°N D. 0°纬线
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