Answer:
See below.
Explanation:
1. Add punctuation and capitalization:
Mr. and Mrs. Washington are planning to go to Australia this summer.
Names always require capitalization, including the names of countries.
2. Add punctuation (quotes, commas, apostrophes, and periods) and capitalization (names):
"Here Spot," shouted Kevin as he ran toward Cindy's house.
Since the house belongs to Cindy, there should be an apostrophe before the "s."
3. Add punctuation and capitalization:
Seventeen anteaters marched across Peru singing, "Yankee Doodle Dandy."
Always include quotations around phrases being said (or in this case, sung).
