下列词语中，字形及划线字的读音都完全正确的一项是（   ）

口语交际.根据上下文提示，在下面对话的空白外填入适当的话语（话语可以是句子、短语或词），使对话完整.

(Sam and Ted are talking on the phone.)

Sam: Hello, this is Sam,____ 

Ted: Hello, Sam! It's me, Ted. This term is over. I'm going to see my grandparents.

Sam: Oh, really?____ 

Ted: They live in Shanghai.

Sam:____ 

Ted: I'm going there by train.

Sam: How long does it take?

Ted: About 8 hours.

Sam: Who will meet you at the station?

Ted: My uncle.

Sam:____ 

Ted: It's quite hot and rainy.

Sam: You'd better take an umbrella and some thin clothes.

Ted: Yes, I will. By the way,____ 

Sam: I've no idea. Maybe my parents will have a plan.

 Ted: OK, see you.

在△ABC中，AB=AC，∠A=80°，进行如下操作：

①以点B为圆心，以小于AB长为半径作弧，分别交BA、BC于点E、F；

②分别以E、F为圆心，以大于 $\frac{1}{2}$EF长为半径作弧，两弧交于点M；

③作射线BM交AC于点D，

则∠BDC的度数为（　　）

我国宪法规定，公民有言论自由。下列不属于言论自由的是（   ）
①煽动他人破坏社会公德 
②教唆他人破坏民族团结
③在听证会上发表言论    
④侮辱、诽谤他人 
⑤向上级领导如实反映情况