Complete the following text with right forms of the verbs given in the box.

repent

prepare

wait

call

waste

Student life is the best time for (a) — oneself for future. It (b) — the seed time of life. So during this period of life students mustn't (c) — time. They should bear in mind that time (d) — for none. If a student wastes his time, he will have to (e) — in future.