Modal Verbs
Indefinite Pronouns
Mystery Vocabulary
100

It's impossible that Atlantis is real. Atlantis ______ be real. 

a. must   b. can't   c. might

b.can't

100

Complete: "Has ______ seen my umbrella?"

anyone/anybody

100

What is the past form of the verb witness?

witnessed

200

There's a small chance D. B. Cooper survived. He ______ have survived. 

a. must  b. can't  c. might/could

c. might/could

200

Complete: "HAHA! You lose ______!"

a. nothing  b. everything  c. anything

b. everything

200

Which verb means "to try to discover the truth about something"? 

a. investigate

b. believe

c. clue

a. investigate

300

Something definitely scared the people. Something ______ have scared the people.

a. must  b. may  c. could

a. must

300

Complete: "Well, it has to be ______!" 

(The place is unknown.)

somewhere

300

Complete: "A possible explanation for a mystery is called a ______." 

theory

400

Rewrite using a modal verb: "I'm sure someone took the money."

Someone must have taken the money.

400

Rewrite using no instead of any: "We can't find it anywhere."

We can find it nowhere.

400

Complete: "After collecting evidence and investigating a mystery, detectives hope to find a ______."

solution