‘Let’s go for a walk. We’ve been working all day”, said Joanna.

Theme: “Let’s go for a walk. We’ve been working all day,” Joanna said.

A. Joanna suggested going for a walk because they had been working all day.

B. Joanna insisted on becoming a convert because they worked all day.

C. Joanna offered to convert because they had been working all day. (Do not reverse the time of t in the subordinate clause)

D. Joanna suggested going for a walk because she had been working all day. (S in sub-md is not correct)