FIRST CONDITIONAL (POSSIBLE)
If I (TRAIN)_____ harder, I (BECOME)_____ a professional tennis player.
TRAIN / WILL BECOME
If I (HAVE)_____ more money, I (BUY)____ lots of clothes.
HAD / WOULD BUY
If I (NOT BE)_____ so stupid, I (NOT MAKE)_____ the same mistake again and again.
WEREN'T / WOULDN'T MAKE
We (HAVE)____ to take a stronger tent if it (SNOW)____in the mountains.
WILL HAVE / SNOWS
The planet (BE) _____ destroyed if an asteroid (HIT)____ it.
WOULD BE / HIT
I promise I (TELL)____ the teacher if you (NOT STOP)_____ bothering me.
WILL TELL / DON'T STOP
If my dad (NOT LET)______ me go out this weekend, I (NOT TRUST)_____ him anymore.
DOESN'T LET / WON'T TRUST
If I (BE) _____ you, I (NOT SPEAK)_____ to Alice and (WAIT)____ for her to talk first.
WERE / WOULDN'T SPEAK - WOULD WAIT
If the quarantine (GO ON)_____ forever, I (PREFER)_____ to live on another planet!
WENT ON / WOULD PREFER
How (YOU/FEEL)_____ if school (NOT START)_____ next year?
WILL YOU FEEL / DOESN'T START
What (HAPPEN)______ if aliens (INVADE)_____ the Earth in the future?
WOULD HAPPEN / INVADED
If this pain in my tooth (NOT GO AWAY)______by tomorrow, my mum (CALL)_____ the dentist for an appointment.
DOESN'T GO AWAY / WILL CALL
My friend (BE)____ upset with me and he (NOT LEND)_____ me his bike anymore if he (HAVE TO)____ buy a new one.
WILL BE- WON'T LEND/ HAS TO
If I (CAN)____ choose an animal, I (BE/PROBABLY)____ an eagle and I (FLY)_____ over the sky.
COULD / WOULD PROBABLY BE - WOULD FLY
What (YOU/THINK)____ if you (KNOW)_____ you had _____ only one more day of life?
WOULD YOU THINK / KNEW