Apostrophe Placement in Time Expressions ("Tetris" Game)
Here is an interactive game to help you learn about apostrophe-placement in time expressions (e.g., "two days' notice"). To keep you on your toes, you will occasionally see a question not related to a time expression (e.g., "the baker's shop").
Each falling question has a correct apostrophe and a wrong one.
Click on the correct one to score points and to make the question disappear.
If you click on the wrong one (or do not click), the question will fall to the bottom.
The wrongly answered or unanswered questions will start to build up.
When the screen is full, you're toast.
(The harder the level, the more points you score per correct answer.)
Good luck!
More Tests on Apostrophes
Here are five more tests related to apostrophe placement:
(4) Possessive Case Exercise. This exercise contains 18 multiple-choice questions on the possessive case in general, covering apostrophes for possession.
(5) Apostrophe Exercise (Temporal Expressions). This apostrophe exercise contains 20 multiple-choice questions on the use of apostrophes in temporal expressions (e.g., a day's pay, two years' insurance).