49. A.so that B.in case C. as if D. even though
48. A.when B.before C. since D.until
47. A.got through B.got back C. got off D.got into
46. A.already B.still C.almost D.hardly
45. A.drove B.dropped C.rolled D. looked
44. A.social B.sick C.extra D.free
43. A.deep B.serious C.slight D.little
42. A.hit B.run C.thrown D.followed
41. A.worried B.moved C.forgot D.grew
40. A.learn B.live C.talk D.walk