补全对话。根据对话情景及首字母提示补全单词。
(It is Saturday afternoon. Sam and Amy are going to the cinema by bike. They are at crossing now.)
Sam: S___________, Amy! The light is red.
Amy: Oh, sorry. I didn't notice it.
Sam: Don't hurry, Amy. The light is y___________. We must w___________.
Amy: Look! The light is g___________ now. Let's go.
Sam: All r___________.
