We ______certain livings as birds not because they have long legs or short legs,but because they all havefeathers.
They are_________ to eat Chinese food though they have been in America for years.
If you don' t know a word, you can ________ the word in a dictionary.
Many girls like __________ skirts in summer.
He ________ living in the country to the city.
The students put down their pens when the teacher_____ them to stop writing.