2. Поставьте предложения в Past Indefinite и сделайте вопросительную и отрицательную формы.
a) We (to buy) a new car on Tuesday.
b) Mike (to do) his homework yesterday.
c) They (to stay) at home yesterday

We bought a new car on Tuesday. Did we buy a new car on Tuesday? We didn't buy...Mike did his homework yesterday. Mike didn't do his homework yesterday. Did Mike do his...?They stayed at home yesterday. Did they stay at home yesterday? They didn't stay at....