Chọn đáp án đúng. Thanks(41)......... the Internet, we are now living in a global village.We have more information about other countries(42)........ever before.We know as much about the situation in Africa(43)......... in the USA, pollution which(44).......in one country will affect other countries, too For example, nuclear power is not dangerous only for one country(45).......is an international problem. If we do not take action soon, the possibility of a nuclear(46).......is very real.We should all recycle our(47).........not hope"green' people will do it for us.Some people think(48).......resources will go on forever, but they(49)....... .We all have an obligation our environment 41.A.to B.for C.of D.fom 42.A.as B.than C.more D.all 43.A.than B.as well C.as D.more than 44.A.produces B.producing C.is produce D.is produced 45.A.but B.and C.or D.so 46.A.event B.happening C.disaster D.incident 47.A.rubbish B.garbage C.waste D.all are correct 48.A.nature B.natural C.man made D.artificial 49.A.will B.shan't C.won't D.may 50.A.to protect B.protect C.protecting D.protected