Review the item:
Jacob's physics notes were tucked in his book bag. A half-read copy of Moby-Dick served as a coaster for a glass of cold soda. An unopened trigonometry book was __________ on the desk. Although final exams were only two days away, Jacob played another level of Tomb Raider, his favorite computer game.

The trigonometry book is resting on the desk. Thus, you need a form of lie. Since the sentence has a progressive verb, you need the present participle.

Consult the table below or review the rules.

Notice that lieing, the form you chose, does not appear on the table; lieing is a spelling error.

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

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