Open the brackets and put the verbs in the right form of Conditionals
1. He (open) the door if he (have) the keys.
2. If cameras (not/cost) so much, we (buy) one.
3. If you (close) the door, it (lock) automatically.
4. If you (go) shopping, you (spend) much money.
5. He (get) there quickly, if he (ride) a bike