1 . 用所给词组的适当形式完成下列句子(有两个词组是多余的)

thanks to                 refer to…as…               on the increase          have connection with date back to             in response to               take… for granted

1. Does smoking ___________________ his poor health？
2. But often drivers just pass by, __________ the human traffic signal ______________.
3. ______________ the teachers, I have found the proper method of learning English.
4. Their use was limited by laws, the first of which ______________ the fourteenth century.
5. The number of young people with money to spend was ____________________.