20170625
54. Is this your pen? I found it under the desk. 这是你的笔吗?我在桌下捡的。
55. No. Mine is blue. 不是。我的是蓝的。
56. Which is your bag? 哪个是你的包?
57. The bigger one. 大些的那个。
58. The one on your right. 你右边的那个。
59. Are these books all yours? 这些书全是你的吗?
60. Some of them are mine. 一部分是我的。