Question 38: He usually had meals with his family two years ago. Now he doesn't.
He used to have  meals with his family two years ago
Question 39: It's a pity. I can't afford a new computer.
i wish i could afford a new computer.
Question 40: They went on a city tour. Then, they had lunch at a fashionable restaurant.
after They had gone on a city tour,  they had lunch at a fashionable restaurant.