Put the verbs in brackets in conditional sentence type 1

Put the verbs in brackets in conditional sentence type 1.

1. His parents (be)……….. sad if they (know)……….. the truth.
2. The teachers (be)……….. proud of their student's results if they all (pass)………. the final test successfully.
3. They (jump)………… up if they (know)……….. their wonderful results.
4. The company (employ)…………. more agents if they (need)………… them.
5. There (be)……….. floods and landslides if it (rain)………. so heavily all day long.
6. If the students (be)………… late for class, they (have)………… to apologize to their teacher for being so.
7. The gardens (have)…………. nice colors in spring if you (plant)…………. different kinds of flowers.
8. The boys (be)………….. happy if their teacher (allow)…………… them to take part in the "Green Sunday" activities.
9. If she (be)…………… interested in sports, she (be)…………. able to join in the school sports club.
10. The children (be)………….. excited if you (give)………….. them some comics.
11. If they (be)…………… thirsty, they (drink)…………. a lot of water.
12. They (bring)…………. your goods home if you (order)………… them.
13. If my mother (go)…………. shopping, she (buy)……….. us new shoes for Tet.
14. They (not go)………… anywhere this summer if they (get)…………. bad results.
15. We (have)………….. to go without John if he (not arrive)………….. soon.