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Here is the answers for Odd problems from Initial First 5 of 10 Problem LDS HW and Initial Second 5 of 10 Problem LDS HW.
1) No central atom or lone pairs, 1 single bond (H is exception only wants 2 electrons)
3) O is central atom and has 2 lone pairs, 2 single bond (special way to draw it!!)
5) Be is central atom and no lone pairs, 2 single bond (Be is exception and wants 4 electrons)
7) C is central atom and no lone pairs, 4 single bond
9) S is central atom and no lone pair, 4 single bond (don't forget [ ] and charge in LDS for ion)