从方框中选择适当的句子,补全对话(共5小题,每小题1分)

A: Hey, Lucy! What are you doing for vacation?

B: 1  I'm leaving on Friday. How about you?

A: I'm going sports camping.

B: Oh, cool!

A: 2

B: I'm going with my mother.

A: 3

B: On the eleventh.

A: 4 What about Tom? 5.

B: He's going to the beach with his family.

A．When are you going?

B．Sounds great!

C．Who are you going with?

D．We are leaving this weekend.E. Where is he going for vacation?

F. I'm visiting my cousins in Canada.

（6分）在一定条件下A与B反应可生成C和D，其能量变化如图：

（1）下列有关反应A+B = C+D的说法正确的是         。

A．反应前后原子的种类和数目一定不变

B．该反应若有能量变化，则一定是氧化还原反应

C．该反应若为放热反应，则不需加热反应就一定能自发进行

D．反应物的总质量与生成物的总质量一定相等，且遵循能量守恒（2）若E₁<E₂，则生成物的总能量       （填“>”、“<”或“=”）反应物的总能量，该反应为     （填“吸热”或“放热”）反应。