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后 逗號 一致 一般現(xiàn)在時(shí) 情態(tài)動(dòng)詞 You may be late if you don39。t hurry. 如果你不快點(diǎn)的話,你可能會(huì)遲到。 3. 如果主句是祈使句,從句要用一般現(xiàn)在時(shí)。例如: Let39。s go shopping if you are not busy. 如果你不忙的話,咱們?nèi)ベ徫锇伞? 單元語法聚焦四 實(shí)戰(zhàn)演練 Ⅰ . 用所給單詞的適當(dāng)形式填空 1. If it _________(not snow) tomorrow, we39。ll have a piic in the park. 2. I will meet him at the train station if he ________(e) by train. 3. If you ________ (be) sick, you must go to see a doctor. 4. Remember to call me if you ________ (have) any trouble. 5. She ________(miss) you if you move away. 單元語法聚焦四 doesn39。t snow es are