Complete the zero conditional sentences. Use the correct form of the verbs below. do, go, have, sleep, spend, wake.
1) If she feels tired, she _ her homework.
2) If the children have got money, they _ it on computer games.
3) If I _ my brother up in the morning, he doesn’t get to school on time.
4) If Sarah _ for a walk every day, she feels terrible.
5) If I _time, I play tennis after work.
6) He feels tired in the morning if he _ for eight hours at night.