I can't find my backpack,It _____be still in the classroom.A.might B.could C.can't D.will

I can' t find my I can't find my English book. I can‘t find my giasse是什么意思 ----_______?-----I can't find my shoes. where------ my trousers?i can't find -------. I can't find my ruler.Can I b______ yours? I lose my purse.I can’t find it a-------. I can't find my key s______.I'm worried. I can't find my pen.May I use___(you) I can’t find I can't find I can’t b____ my eyes.You are back now! I can't find my pen.Who________ (take)it? I can't find my English dictionary ,who___(take) it where are my shoes,i can't find them a________ where are my books?i can ’t find（ ） I can't find my books .where are t____ I can 't find my pen.什么意思