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.