III. Write the correct forms of the verbs. 1. I (be) late for work if I (not catch) the bus.
2. Where you (stay) if your uncle (not be) at home?
3. If I (can speak) English. I (be) a guide.
4. I (walk) there if it (not be) so far.
5. If he (stop) smoking earlier, he (not have) an operation.