If we ________ now to protect our mother river ---Li Jiang River , we ‘ll live to regret it.
A．haven’t actedB．won’t act
C．don’t actD．hadn’t acted
C

試題分析: 考查動(dòng)詞時(shí)態(tài)。主句是將來(lái)時(shí)態(tài)的時(shí)候， if引導(dǎo)的條件狀語(yǔ)從句中應(yīng)該用一般現(xiàn)在時(shí)表示將來(lái)，所以C選項(xiàng)正確。句意：如果我們不行動(dòng)起來(lái)保護(hù)我們的母親河---漓江，我們將來(lái)會(huì)后悔的。
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