If something will happen or not.

as alternative or substitute.

Set of questions in a text book. To retain your ability or practice your skills.

Needed or required; unavoidable. basic requirements of life.

Not gay; heterosexual. in straight line. part of something that is not curved.

gladly received. used to greet someone in polite or friendly way. instance or manner of greeting someone. To accept or receive something happily and gladly.

word governing, and usually preceding, noun or pronoun and expressing relation to another word or element in clause.

Act of getting knowledge. To get knowledge or skills by study or experience.

leaving one with pleasantly satiated feeling. Being full. To use (time); to do something during.

Many of. more than two but not many. More than two but not a large amount.

action that is performed without conscious thought as response to stimulus. Body's physical reaction done unconsciously.

period of learning or teaching. Some things done to learn or teach something; classes. teach.

put forward person or thing with approval as being suitable for particular purpose or role.

To have achieved what you were trying to achieve.

characterized by or expressive of desire to know something. To think or consider about something over time.