mark the letter A,B,C or D on your answer sheet to indicate the correct answer to each of the following questions 

1 sea level rise in usually regarded as vietnam's main....:a one-mete rise submerge 40% percent of the country and make millions on homeless 

A.disire.  B.disappear.        C.expectation    D.promise

2. The...of millions of species in the world is a scary effect of blobal warming

A. appearance  B.disappear   C.appear     D.time

3 childdeen in us have their own room and they do not sleep with their parents from an early

A.age.  B.stage    C.period.        D. time