[ Subject Verb Agreement ]
Either lightning flashes or thunder (is, are) let out by the sky.
A. is
B. are

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Gerunds and Infinitives › ViewThe president has sworn ___________(Defend and execute) his office well.
A. defending and executing
B. to defend and execute
Grammar › View
… apple fell from the tree.
A. A
B. an
C. An
D. a
Vocabulary › ViewWhen you _______, you provide, give, or add on to something.
A. conclude
B. contribute
Vocabulary › View
Even though he felt in his heart that Gussie had passed, Mr. Garoff was _________ until they identified her body.
A. ardent
B. frugal
C. stoic
