I.choose the word that has the underlined part pronounced differently from the others
1.A.rented            B.stopped              C.washed               D.looked
2.A.ground           B.group                  C.house                 D.found
3.A.health            B.seatbelt               C.bread                  D.ahead
4.A.safety             B.traffic                   C.plane                  D.station
II.Choose the best answer(A,B,C or D) to complete the sentences
1.Don't read in bed________you want to harm your eyes.
   A.if                   B.unless                   C.or                       D.so
2.She loves_________flowers and putting them into different vases
  A.buying           B.to buy                    C.buy                    D.bought
3.If you want to live long,you_________eat more vegetable and fruit
  A.should           B.shouldn't                C.had to               D.needn't