First conditional

Gap-fill exercise
By Juan Ignacio Montorio

Fill in all the gaps, then press "Check" to check your answers.

1. You (be) happy if (work) harder.
2. If Helen (not finish) her homework, she (not go) to the cinema.
3. If the teacher (open) the window, it (be) too noisy.
4. If we (have) time, we (walk) to work.
5. Your brother (not earn) any money for 3 years if he (go) to university.