In his pocket, a boy has 3 red marbles, 4 blue marbles, and 4 green marbles. How many will he have to take out of his pocket to ensure that he has taken out at least one of each color?
Taking out 3 of each color will ensure that he has 1 of each color. Thus, he needs to take out 9 marbles, in all.
What are psychological disorders?
Psychological disorders are behavior patterns or mental processes that cause suffering and inability to cope with everyday life.
What is the main verb and auxiliary verb in the following sentence? I have read many, many books.
have is the auxiliary verb and read is the main verb