用括號里所給動詞的正確形式填空.

題目：

用括號里所給動詞的正確形式填空.
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.

解答：

1.lost it
am looking
2.have returned
will return
3.have written
have wrote