Helppppppp meeeeeeeeeee

5. Everyone. obey the traffic rules. A. have to B. has to C. shouldn't D. needs 6. Children need a good environment to develop physically mentaliy. A. and- and B. in- and C. the-the D. both-and 7. I work hard, I won't be able to earn enough money to raise my family. A. Unless B. Becaus ...