I'm____ my backpack everywhere ,but I can't____it.A.look for；find B.looking for；find

I'm____ my backpack everywhere ,but I can't____it.A.look for；find B.looking for；find I think it m____ my blue jeans. I have some books in my backpack.变否定句 I ______ (落下) my backpack during the concert last weekend. I WANT TO PUT THE WALLET IN MY BACKPACK.( I enioyed m____ at my best friend's birthday party Last Saturday my parents and I climbed the m____. where's my backpack? Where's my backpack? It is my backpack _your backpack 用without,I,ran,to,get,backpack,my,my,keys,home连词成句 I what to put the wallet in my backpack.(改为同义句I（ ）（ ）（ ）put the wallet in my backpack. I am really worried ,for I can;t find my backpack为什么用worried I'm really anxious,because I can't find my backpack.翻译中文 I'm really anxious,because I can't find my backpack.单据改错 i think i ___(drop) my backpack during the part last night. It's my backpack.对my backpack提问KUAIDIANA Every day I take pens ,erasers ,pencils,books and notebooks in my backpack to school．