10. Unless we do something now, hundreds of plant and animal species will disappear. A. pass on B. send in C. pass down Write the correct forms of the words 11. We took off our shoes and socks and walked 12. In some areas, rate of poverty, 13. An igloo is a 14. Paying respect to people of house built from blocks of ice. the following sentences without changing its meaning (CLOSEST) D. die out along the beach. and unemployment remain high. is a traditional in Vietnam. (barefoot) (literate) (dome) (senior)