1.(2010.内江中考)I don’t know if it______tomorrow.If it______,we won’t go on a picnic.
A.rains;rains B.will rain;rains C.will rain;will rain
【解析】选B
2.（2010·山西中考）In summer , food goes bad easily ________ it is put in the refrigerator.
A. until B. if C. unless
【解析】选C
