Read about the difference between subject and object questions here.

Practice 1: making subject and object questions
Write the question for each of these sentences. For example:
Practice 2: subject or object question?
Complete the short conversations with 1-3 words. All the questions use the past simple with the verb in brackets.
Practice 3: subject and object questions in different tenses
Complete these short conversations with 1-3 words. This time, you will need to use the present simple, past simple or present continuous.