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并列成分作主語時 ,謂語動詞的數(shù)遵循“就近一致”原則。 I’ll ring you as soon as I reach Beijing. 我一到北京就給你打電話。 :引導(dǎo)詞有 if, unless。 It was raining so hard that we couldn’t see the road. 雨下得如此大 ,以至于我們看丌見路。 I need to get up early so that I can catch the early bus. 我需要早起 ,以便趕上早班車。 Wherever he goes, he always brings his pet dog. 無論他去哪里 ,他總是帶著他的寵物狗。 Be careful when you cross the road. 過馬路時要小心。 If she here tomorrow, I will go to the park with her. 如果明天她來這里 ,我將和她一起去公園。 I don’t know when (什么時候) he will e tomorrow. When(當(dāng) ……的時候) he es, I will tell him about the news. 我丌知道他明天什么時候來。