[参考答案]对话题型能力练习 Test 15
61. received
62. It
63. without
64. because
65. have been opened
66. cost
67. the
68. however
69. to send
70. why/the reason
61. received
62. It
63. without
64. because
65. have been opened
66. cost
67. the
68. however
69. to send
70. why/the reason
