This worksheet features 40 command practice questions (20 affirmative tú commands, and 20 negative tú commands). A few of the verbs I incorporated come from Avancemos 3, Unit 2 (verbs like "sponsor," "broadcast," "publish," etc.), but you could easily modify those select few questions to fit the unit you're studying. For the most part, they are common verbs like "eat," "study," "practice," etc.
Some - not all - of the questions ask the students to work with direct object pronouns. But, even if you have not yet taught D.O. pronouns in conjunction with commands, the "rules" are listed up above each section. It explains how to attach them to affirmative commands (including where to put the accent), and it also explains where to place them with regard to negative commands.