Ex.4
1. A: Was the sun shining?
B: Yes, it was. / No, it wasn't.
2. A: Were the boys wearing shorts?
B: Yes, they were. / No, they weren't.
3. A: Was the man sitting on the grass?
B: Yes, he was. / No, he wasn't.
4. A: Was the girl wearing a helmet?
B: Yes, she was. / No, she wasn't.
