Question

I did not want him to go there: I (to be) afraid that something (to happen) . I didn't notice that my watch (to stop) and when I (to arrive) at the station, my train (to leave) and I (to have) to ask when the next train (to come)

Answer 1

I did not want him to go there: I (was) afraid that something (would happen).   I did not notice that my watch (had stopped), and when I (arrived) at the station, my train (had left) and I (had) to ask when the next train (would come).

Answer 2

I did not want him to go there: I was afraid that something would happen. I didn't notice that my watch had stopped, and when I arrived at the station, my train had already left, and I had to ask when the next train would come.