Помогите с заданием по Английскому

#1 Complete the sentences with the correct forms of the verbs in brackets.
1) If you study (to study) hard, you will pass (to pass) the test.
2) If my friends (to come), I (to be) very happy.
3) If she (to earn) a lot of money, she (to go) on a round-the-world tour.
4) If we (to travel) to London, we (to visit) the museums.
5) If I (not/to argue) with my father, he (to lend) me his motorbike.