While____the dog,you should take care not to____.Otherwise,it may be dangerous to strangers.
A．walking; get looseB．walk; be loose
C．walking for; get it looseD．training; get it run
A
考查狀語(yǔ)從句的省略和系表結(jié)構(gòu)�？疾闋钫Z(yǔ)從句的省略。當(dāng)狀語(yǔ)從句的主語(yǔ)與主機(jī)主語(yǔ)一致的時(shí)候，且狀語(yǔ)從句中有be動(dòng)詞的時(shí)候，可以把主語(yǔ)和be動(dòng)詞一起省略。本題的walk與后面主語(yǔ)you構(gòu)成主動(dòng)關(guān)系，使用現(xiàn)在分詞的形式，在while于walking之間省略了you are.系動(dòng)詞get后面接形容詞loose，構(gòu)成系表結(jié)構(gòu)。句意：當(dāng)你在遛狗的時(shí)候，當(dāng)心一點(diǎn)不要松開(kāi)，要不然對(duì)陌生人會(huì)是很危險(xiǎn)的。故A正確。
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