_____youunderstandthisrule，you‘llhavenodifficultyindealingwithsuchproblems.
更新时间:2024-11-02 11:25:29 A、WhileD
once 意思是 “一旦 ”。while “ 当⋯⋯ 时候 ” ;though“虽然”;unless “除非 ” 。“一旦 你明白了这个规则，处理类似的问题就不困难了。 ”显然， d 符合句子意思的表达需要。
I ‘ve been telling you_____not to do that ，but you neve listened to me.That ’s why you gotinto trouble.
Thegirlwhofoundtheringreceivedagenerous_____offivepounds.
Two-thirdsofhisproperty_____lostinthefire.
Theteachergave_____theexaminationpaper.
If he_____the storekeeper ‘s scissors ，he would have forgotten to buy a pair.
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