根据句意从方框中选择合适的单词并用其适当形式填空。

man  knife  I  her  class

Mom, help _______ find my friend Jim, please.
This bike isn’t mine. It’s _______.
Mike and I are in the same grade, but we are in different _______.
—Whose _______ are in the desk?
—They are Ann’s and Dick’s.
—Who are the two ________?
—They’ re our teachers.