【題目】If people________polluting the air, animals and plants will die soon.

A. didn't stop B. don't stop C. haven't stopped D. shall not stop

【答案】B

【解析】

句意：如果人們不停止污染空氣，動(dòng)植物很快就會(huì)死去�？疾橐话悻F(xiàn)在時(shí)。由題干可知本句是if引導(dǎo)的條件狀語(yǔ)從句，主句用一般將來(lái)時(shí)，從句用一般現(xiàn)在時(shí)表示將來(lái)。結(jié)合選項(xiàng)可知B選項(xiàng)符合題意，故答案選B。

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