选择正确的单词补全句子。
（1） This _________ (is/are) my cap.
（2） He is _________ (wear/wearing) new trousers.
（3）I talk _________ (on/at) the phone with my mum.
（4）I go to the zoo _________ (by/on) bus.
（5） ________ (Red/ Yellow) is wait.