Any signal given three times is a(n) _____ for help.

Any signal given three times is a(n) _____ for help. 请帮我看看啥意思（一）any signal given three times is a call for help. "Three" is three times "____ one" and twice "_____ one " A:m I _____ any books for three months. “Three” is three times “____ one” and twice “_____ one ”. 英语翻译Program funding is given for a three-year period,with th when a signal is given t____ ,it is an answer to callfor hel On the farm my job is to _____ the chickens three times a da a is three times heavier than for three times I watch TV _____ or three times a week. the tree must _____(water) three times a month