Fill in all the gaps with the correct form of the verbs in brackets.
1. If I (have) a flu, I (stay) at home.2. He (buy) a pair of jeans if he (find) some that he likes.3. If you (have) a question, I (answer) it to you.4. Mum (be) really worried if I (come) home late.5. I (cross) the street if I (see) James.6. If she (participate) in the activity, she (have) a good time.7. I (walk) home if I (not find) a taxi.8. If my cousin (go) to live in Germany, she (learn) Spanish.9. My son (become) a doctor if he (finish) his studies this year.10. Rachel (finish) her project on time if she (work) hard.