—Your book, Tommy? —No, Mom, it’s my friend’s. —Remember to return it to ____ name is on it.
________, I attended the meeting instead of him last week.
When you read the book, you’d better make a mark ______ you have questions.
I didn’t see your sister at the cinema. If she ______, she would have met my brother.
____ all behavior is learned behavior is a basic assumption of social scientists.
By the middle of the 21st century , the vast majority of the world’s population ________ in cities rather than in the country.