The same five-letter word can fill the blanks in the letter strings below. Once filled in, the letter strings can be separated into words to form a common word, a common phrase and a complete sentence.

1. D _ _ _ _ _ S
2. CL _ _ _ _ _ EAIR
3. IDIDNTH _ _ _ _ _ AT

Answer:

The word is EARTH:

1. DEARTHS
2. CLEAR THE AIR
3. I DIDN'T HEAR THAT