Determining Unknown Words

Today I had to deal with one mishap after another. I couldn’t find my car keys, I dropped a bowl of soup at lunchtime, and my computer crashed twice.
In this sentence "mishap" means...

• unlucky accident
• event
• unexpected question
• plan

Some animals have impressive longevity. For example, the giant land tortoise can live several hundred years.
In this sentence "longevity" means...

• appearance
• length of life
• habits
• habitats

Since my grandfather retired, he has found a few new avocations. For instance, he now enjoys gardening and chat groups on the Internet.
In this sentence "avocations" means...

• jobs
• vacations
• responsibilities
• hobbies

Today was a day of turmoil at work. The phones were constantly ringing, people were running back and forth, and several offices were being painted.
In this sentence "turmoil" means

• discussion
• harmony
• confusion
• organization

Nocturnal creatures, such as bats and owls, have highly developed senses that enable them to function in the dark.
In this sentence "nocturnal" means...

• awake at night
• fat
• ocean living
• angry

I asked the instructor to explain a confusing passage in the textbook. She said, “I wish I could, but it’s obscure to me, too.” 
In this sentence "obscure" means

• obvious
• long
• unclear
• short

Teachers may overlook it when a student is two minutes late. But they are not going to condone someone’s walking into class a half hour late.
In this sentence "condone" means...

• allow
• color
• notice
• hear

Teachers should be careful about having adversaries work together; opponents often do not cooperate well. 
In this sentence "adversaries" means...

• people who don't like each other
• people who get along
• people who like homework
• people who are loud