介词填空 Her daughter is ill,so she should be allowed to have a day __

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• 介词填空 Her daughter is ill,so she should be allowed to have a day __
• 求一道英语完形填空Mrs Brown’s mother is ill,so she has to go and look after her.11 she leaves,she speaks to her 12 Tim,“I should tell you 13 to look after yourself.But my train will 14 in half an hour.I must go now.” “Don’t worry,Mum” Tim says,“I can 15 myself.” He thinks,“When my mother comes 16 tomorrow,she won’t 17 any bowls.She must be happy.” The next day,when Mrs Brown sees the bowls and says 18 ,“How clean they are!You do very 19 ” “Yes,of course!” says
• 若x≥0，y≥0，且x+2y=1，则2x+3y2的最小值是（　　） A.2 B.34 C.23 D.0
• 表示本领的成语有哪些?