The girls didn't know where (they're/their/there) parents went.
Their.
Active or passive: The Grand Canyon is visited by thousands of tourists every year.
Passive.
Can you tell me (who's/whose) car you're taking?
Whose.
Place the Commas: Tegan wants to go home but Sarah doesn't want to leave yet.
Tegan wants to go home, but Sarah doesn't want to leave yet.
Roland's new bike is not as heavy as his old one.
Correct.
Will you please (accept/except) my help?
Accept.
Active or passive: The cleaning crew vacuums and dusts the office every night.
Active.
Last year's historic blizzard (affected / effected) all six New England States.
affected
While I was in the kitchen the baby woke up.
While I was in the kitchen, the baby woke up.
The shingles on the house are as damaged as that on the garage.
The shingles on the house are as damaged as those on the garage.
You need to practice being (discreet/discrete) when copying homework.
Discreet.
He has been writing a book about the dangers of scuba-diving his whole life.
Active.
The cliffs form a (continual/continuous) line along the coast.
Continuous.
He considered the proposal but did not actually adopt it.
No commas.
Because of the movie based on his novel, Michael Ondaatje's name is better known than many prize-winning authors
Because of the movie based on his novel, Michael Ondaatje's name is better known than the names of many prize-winning authors.
I would never (assent/ascent) to your conditions.
Assent.
Active or passive: The staff is required to watch a safety video every year.
Active.
Can you show me the (accomodations/acommodations/accommodations) that you promised?
Accommodations.
Place the Comma: The dogs that need to be fed washed and walked should follow you now.
The dogs that need to be fed, washed, and walked should follow you now.
Athletes can be just as unhealthy, or even unhealthier, than people who lead sedentary lifestyles.
Athletes can be just as unhealthy as, or even unhealthier than, people who lead sedentary lifestyles.
You've been (laying/lying) on the floor all day. Did you pick up the magazine that had been (laid/lain) out?
Lying, laid.
The movie is being made in Hollywood.
Passive.
Spell the following word correctly.
Fuchsia.
Insert the comma: The busy servers took orders and delivered meals to the hungry yet polite customers.
No commas! >:)
(Or: hungry, yet polite, customers)
Mia is friendlier than anyone I know.
Mia is friendlier than anyone else I know.