Supply the correct form of the verb in each bracket:
1. By the time you came to school, we ( finish ) the lesson. .......................
2. If she were my mother, she ( buy ) me many gifts. .......................
3. The ruler ( make ) of wood is mine. .......................
4. When he came, everyone ( sing ) in the class. .......................
5. Our teacher suggested that we ( use ) public bus. .......................
1. had finished
2. would buy
3. made
4. were singing
5. using