-Is this ________ ruler?

-No．It's ________ ruler．

1. A.
   your, your
2. B.
   her, your
3. C.
   you, her
4. D.
   his, I

根據下列句子及所給漢語注釋，寫出空缺處各單詞的正確形式，每空只寫一詞。

71. That’s _________(不是) my ruler. It’s Tony’s.

72. What’s her name?     --I don’t _________(知道).

73. I have a _________(鐘), it’s on the table.

74. Gina always __________(問), “Where are my keys? Where’s my schoolbag?”

75. Thanks for your ________(幫助).

選出符合題意的單詞，并用其適當形式填空。（5分）

76. What’s this in ________? It’s a ruler.

77. Tony’s phone number is 330-2258. You can _______ him.

78. Is that your Chinese book? No, _______ isn’t.

79. How ________ your mother? She is fine.

80. This is my eraser. That’s ________ eraser.