Questions 20-23. Choose the best word or phrase (a-d) to complete each sentence. Use each answer only once.

A. because                B. one reason                   C. so                   D. to

20. It was Susan and Roger’s wedding anniversary, _______________ they went to a restaurant to celebrate.

21. The menu had a dish that sounded delicious, but Susan did not order it_______________ it was too expensive.

22. Both Susan and Roger each ordered a salad. _______________ was that they wanted

something healthy.

23. The restaurant was expensive. They decided to share a dessert ________ save money.