I didn’t know where to send this _______ letter.
（A）registered
（B）maid
（C）mail
（D）male
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- 1It is an Eskimo custom to _____ noses as a greeting.
- 2A contemporary _______ once said: man lives on the earth as a guest of green plants.
- 3Many sea fishes ______ in rivers.
- 4He spends 30 ( ) of his income on food and drink.(百分之...)
- 5The ______ lions can communicate and dance together with the actors.
- 6A ____ in the house is good luck.
