Conditional sentences: zero, first and second

If you … to be a doctor, you have to study hard.

• will want

• wanted

• want

You will feel better if you … in bed for a day or two.

• stayed

• stay

• will stay

If I … a better memory, I would get better grades on my exams.

• had

• have

• will have

What … if I press this button?

• happen

• happened

• will happen

I … tell you if I knew the answer.

• would

• won't

• will

If you do puzzles, it ... your memory.

• helps

• would help

• helped

If you have a fever, you ... bad for a few days.

• will feel

• felt

• would feel

If you ... in bad shape, you get sick more easily.

• are

• were

• will be

Zero conditional : IF +PRESENT SIMPLE , ...

• PRESENT SIMPLE

• FUTURE

• PAST

FIRST CONDITIONAL: IF + Simple Present, + ...

• Present simple

• Future (will)

• Past simple