Take another look at the sentence:
Defeated, Melody __________ her head on the desk. Even though she had studied until 3 a.m., she could make no sense of the chemistry problems on the exam before her.
Melody put her head on the desk. Thus, you need a form of lay. Since the sentence is past tense, you need the simple past form. Consult the table below or review the rules.
|Infinitive||Definition||Simple Present||Simple Past||Past Participle||Present Participle|
|to lay||to put something down||lay(s)||laid||laid||laying|
|to lie||to rest or recline||lie(s)||lay||lain||lying|