Answer:
EXERCISE 13 Using commas for introductory and nonessential elements
Read the sentences. Add commas as needed to set off introductory phrases and clauses and nonessential elements...
1 On their vacation the Slovins are going to go to India which they've both been interested in visiting ever since an Indian family moved in next door.
2 Because of busy work schedules they won't be able to spend more than two weeks there.
3 They'll visit the Taj Mahal I'm sure as well as two or three major cities.
4 Since the Slovins live in a warm climate they already have suitable clothes for their trip.
5 They'll want to buy presents which are typical of the places that they visit.
6 In my opinion they'll have a wonderful time because both are good travelers and interested in other cultures.
Follow-up Write two sentences illustrating Guideline 1 and two sentences illustrating Guideline 2. Write about plans for a visit to another country.
Guideline 3