Rewrite the following sentences that keep the same meaning

Exercise 1: Rewrite the following sentences that keep the same meaning.
You should take the bus instead of the subway.
➡ If……………………………………………………….
I’m sure that you forgot to bring home the key.
➡ You must……………………………………………………….
They bought this motorbike 5 years ago.
➡ They have……………………………………………………….
The object finished with a trip.
➡ At the end……………………………………………………….