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pair 。to ride ride。 典型例題: A week? It’ s too long! How about ____________ days? dozen of few couple of ’ s up to you. 這由你說了算 It’ s up to sb. to do sth. 由某人決定作某事,作某事是某人的責(zé)任 be up to sth. 謀劃某事,作某事 be (feel / seem) up to (doing) sth. (覺得 /似乎)勝任??( 常用于疑問句或否定句) 典型例題: Who will look after the baby when his parents are away? ____________? ’ s up to are you 5. ?? I don’ t think there is one answer only to this important question??我認(rèn)為對于這個重要問題,答案不止一個?? 【此句使用了否定轉(zhuǎn)移】 典型例題: Mrs Black doesn’ t believe her son is able to design a digital camera,_____________?