Many plants and animals ____________________ (危险的). We should take measures to save the endangered animals and plants. (danger)
All her time _______ research, the scientist has no time for films.
She’s too thin.She ________ gain some weight but she ________ too little.
He shut the window with such force ________ the glass broke.
—Did you know any Chinese before you arrived in Beijing?—Never ________ it, actually.
My pen friend and I keep in touch ________ sending e-mails often.