根据句意和所给音标写出单词。

1．My mother bought me a computer         ／geim／on my ninth birthday．

2．Shall we go to the         ／zu:／first? I want to see the monkeys．

3．I don't drink         ／ti:／at night because it makes me feel difficult to fall asleep．

4．Most of the students in our city go to school by         ／baik／．

5．Can the scientists         ／ik'splein／the reasons for changing the plan?