Mixed zero and first conditional practice for foundational mastery
Q1. If you heat ice, it ___
Zero conditional for scientific fact. Heat is applied. Ice melts. Physics is consistent.
Q2. I will call you if I ___ late
First conditional for communication. Lateness is possible. Calls are promised. Consideration is shown.
Q3. Unless you hurry, you ___ the bus
UNLESS warns of consequence. Speed is urged. Buses depart. Timetables are unforgiving.
Q4. When winter comes, it ___ colder
Zero conditional for seasons. Winter arrives. Temperatures drop. Coats are retrieved.
Q5. If we do not leave now, we ___ be late
First conditional for urgency. Departure is needed. Lateness is threatened. Time is called.