Correct the Punctuation by inserting periods, commas, and apostrophes.

Question

1.Mr and Mrs Lopezs plane tickets incidentally were found in the lobby.

Answer:
Mr. and Mrs. Lopezs' plane tickets, incidentally were found in the lobby.

2. Look youve been unusually late all week and I must take action

Answer:
Look you've been unusually late all week and I must take action.

Thanks again.

Answer 1

1. Mr and Mrs Lopez's plane tickets, incidentally, were found in the lobby.

2. Look, you've been unusually late all week, and I must take action.
(compound sentence; needs comma before the conjunction)

http://grammar.ccc.commnet.edu/grammar/commas.htm
See #s 2, 3, and 4.