In Japanese, making question is so easy. Usually you can add "か" in the end of Sentense to change the statement into a question.
Example.
Statement
Question
台湾人です
I am Taiwanese
台湾人ですか?
Are you Taiwanese?
これはジュースです
This is juice
これはジュースですか?
Is this juice?
大野さんは学生です
Mr.大野 is a student.
大野さんは学生ですか?
Is Mr.大野 a student?
Eメールはとても便利です
E-mail is very convenience.
Eメールはとても便利ですか?
Is e-mail very convenience?
日本の新幹線は有名です
Japanese shikansen is well know.
日本の新幹線は有名ですか?
Is Japanese shikansenn well know?
Example.
