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for a month. 他住院一個(gè)月。 He works in the hospital. 他在醫(yī)院里工作。 10. give sb. sth. = give sth. to sb. 給某人某物 . He gives me a book. = He gives a book to me. 他給了我一本書(shū)。 11. at that moment 在那時(shí) 12. have time to do sth. 有時(shí)間做某事 . I have time to do my homework. 我有時(shí)間做我的家庭作業(yè) 。 13. be careful with … 小心 …… . We must be careful with fire. 我們必須要小心火。 Step 3 Do some exercises. 1. 用所給單詞的適當(dāng)形式填空。 1) We must be (care) with fire because it can be very (danger). 2) Did you do anything (safe) to keep yourself. 3) Do you know what happened to (they