Question

Will you please give me extremely basic sentences that I have to translate into Latin using direct objectums?

Answer 1

I don't see any verbs in the first 3 lessons in Ecce Romani 1 that will allow direct objects. Which lesson are you on now?

http://www.phschool.com/webcodes10/index.cfm?area=view&wcprefix=jfk&wcsuffix=1000

Answer 2

I am now on Chapter 4

Answer 3

The girl sees the boys.

The servant walks in the fields.

The boy climbs the tree.

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Now, surely your text has practice sentences, too. And be sure you use the lessons and vocabulary and grammar exercises in the link I gave you above.

Answer 4

Puella videt puerum.

Servus ambulat in agris(em?)

Puer ascendit arborem.

Answer 5

The -em ending would be used for accusative singular. The ending -is you used first is correct.

http://www.dummies.com/how-to/content/declining-a-latin-noun.html

Everything else is correct.