用括号里所给动词的正确形式填空. 1—Are you sure you _____ ______ (lose) yes,i ____ ____ (look)for it everywhere. 2-john,______ you _________(return)my ladder yet? -not yet.don't worry!I _______ __________(return)it soon. 3---jim,__________ you _________ (write)my letter to your aunt? ---yes,I______.I___________ (write)one last week.