50.A.so B.and C.also D.but
A
49.A.world B.language C.country D.people
48.A.language B.history C.food D.people
47.A.English B.Japanese C.Chinese D.language
46.A.reading B.sleeping C.speaking D.playing
45.A.sing B.write C.speak D.learn
44.A.worried B.happy C.successful D.bored
43.A.think B.find C.look D.take
42.A.good B.well C.bad D.badly
41.A.easier B.difficult C.better D.worse