Why doesn't Laney have to worry when her 3-year-old son Ethan threatens to "hold his breath till he dies?

Name two chemical factors that modify respiratory rate and depth. Which is usually more important?

Write in the blank the verb form indicated in parentheses.

My archery instructor told me how I ________ incorrectly. (present progressive of aim)

Write in the blank the verb and tense indicated in parentheses.

Nadine and Cora _____ to move to Philadelphia for nearly three months. (present perfect progressive, plan)

A worker bee loses its stinger and dies when it stings to protect the hive. Describe how honeybees have evolved such behaviour.

Write in the blank the verb and tense indicated in parentheses.

Jerry _____ for Christina at the pizza parlor. (past progressive, wait)

For the following exercise, assume two dies are rolled.

What is the probability that a roll doesn't include a $2$ or result in a pair?

For the following exercise, assume two dies are rolled.

What is the probability that a roll includes a $2$ or results in a pair?

For the following exercise, assume two dies are rolled.

What is the probability of rolling a $5$ or a $6$?

Write in the blank the verb and tense indicated in parentheses.

We. _____ purchasing a new piano. (present progressive, consider)

Make the noun in parentheses agree with the adjective, then translate the phrase: longarum (dies)

Write in the blank the verb form indicated in parentheses.

Talia and I ________ at the contest last night. (past perfect progressive of dance)

Which of the following was a key Progressive item passed by Taft?

A. the Pure Food and Drug Act

B. the U.S. Forestry Service

C. the Mann-Elkins Act

D. the Payne-Aldrich Act

Write a progressive or emphatic form of the verb in parentheses, using the correct tense.

By 1930, he (begin) to publish short stories.