ild’s behavior, you will find it much more natural than an adult’s.
observe 表示“观察”时为感官动词,后接不定式作宾语补足语时,to 要省去,但在被动句中要带to 。
i observed them enter the bank.
they were observed to enter the bank.
一、 重难点句式讲解和分析:
1. although the silk road covered a huge distance linking modern day xi’an with the middle east and europ资源难易程度:★★★★★★★★★★★★★★★
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