– What a nice model ship!  -- Thank you. It        me three days to make it.

Whose guitar is this?   Susan plays the guitar. It must _______.

--It is cold outside. You'd better wear warm clothes to          the cold. --Ok, thanks.

When something ________ me, I can always go to my friends for help.

I borrow a book from my friend and I can ________ it for a week.