Help my first language is not English so I need help

Iopened the door quietly,then stood in the doorway rewrite using ..ing participle

Do not use this medicine with milk, cheese, or other dairy products. what end punctuation needs to be added to the above bolded word?

Need ! compare and contrast your independent reading selection with one or two other selections you have read in this unit. support your response with at least two pieces of evidence from your independent reading selection. be sure to give the title and author of your selection.