根据句意和首字母提示补全所缺单词

1. We usually eat d____in the Spring Festival.

2. Judy p     speaking English every morning, so she is good at it．

3. Don't talk l____in the reading room.

4. Linda can speak three l____ English, French,Chinese.

5. I'm not sure about it. Let's d____it at the meeting next Friday.

下列何种恶性肿瘤最容易发生全身骨转移（）

A.食管癌

B.乳腺癌

C.前列腺癌

D.肺癌

E.以上都不是