UNIT 1 a/an~advocate .
UNIT 2 aerial~anguish
UNIT 3 animal~assist
UNIT 4 assistance~barely
UNIT 5 bargain~blanket
UNIT 6 blast~brow
UNIT 7 brown~cash
UNIT 8 cashier~cigar
UNIT 9 cigaret(te)~combine
UNIT 10 come~confusion
UNIT 11 congratulate~corridor
UNIT 12 corrode~damage
UNIT 13 darnn~design
UNIT 14 designate~display
UNIT 15 disposal~dust
UNIT 16 duty~empty
UNIT 17 enable~exact
UNIT 18 exaggerate~faint
UNIT 19 fair~fixture
UNIT 20
UNIT 21
UNIT 22
UNIT 23
UNIT 24
UNIT 25
UNIT 26
UNIT 27
UNIT 28
UNIT 29
UNIT 30
UNIT 31
UNIT 32
UNIT 33
UNIT 34
UNIT 35
UNIT 36
UNIT 37
UNIT 38
UNIT 39
UNIT 40
UNIT 41
UNIT 42
UNIT 43
UNIT 44
UNIT 45
UNIT 46
UNIT 47
UNIT 48
UNIT 49
UNIT 50
UNIT 51
UNIT 52
UNIT 53
UNIT 54
UNIT 55
附录