40分，把这这句话翻译成英文

I used to be in a military training, it was really tough altough it was only a 15-day duration, besides, the foods there were extremely disappointing.

I have participated in the military training, but only has 15 day,really laborious, and there meals really bad

I once joined military training.Thought it lasted only 15 days, it did make me tired and the food there was so bad.

I once joined in the military training, but it lasted only for 15 days. It was really a suffering. What maked it worse was that the food was bad.

I have taken army exercises for 15 days with poor meals which was a real hard (painstaking) time for me.

Once I had been in military training ,but only for 15 days.It was really tough .What was more, the meal there was extremely awful.