This map is drawn to the _______ of one inch for 1000 miles, so you can find out how far it is from Beijing to Shanghai.
When my sister phoned me, I couldn't hear clearly what she was ___.
I can hardly ___ the difference between these two words.
--She is angry with me, isn't she? --____.
I am very ___ to you for your kindness.
Shall we have some fish __ meat?