The Clone Wars - S3E15 - "Overlords"

0:59 - Anakin:  "Oh, come on.  That's impossible.  Something's wrong.  We're at the exact coordinates where the distress signal originated, but there's nothing here.  Rex is at the exact same coordinates, and he's not here."  In The Empire Strikes Back, Luke also says, "That's impossible" [1:51:21].

1:21 - Obi-Wan (after the shuttle loses power):  "Not good."

Ahsoka:  "Everything's dead, even the life support."

These lines have some similarity to what Anakin says to R2 after they land in the droid control ship in The Phantom Menace:  "Everything's overheated.  Oops, this is not good." [1:58:57].

2:01 - Obi-Wan:  "Everyone strap yourselves in."  Han Solo uses this same expression in A New Hope:  "Go strap yourselves in; I'm gonna make the jump to lightspeed" [56:46].

3:49 - Obi-Wan (in response to Anakin's asking if Obi-Wan or Ahsoka heard Daughter speaking):  "I didn't hear anything."  In The Phantom Menace, Qui-Gon has a similarly dismissive "I don't sense anything" [3:07] in response to Obi-Wan's bad feeling.  The resemblance here, which is probably just coincidental, is more in the delivery than specific diction.  At 3:28, Obi-Wan says, "I don't see anything" after Ahsoka points out a reflection, but this is said in a different manner.

3:57 - Anakin (to Daughter):  "Who are you?"  This too is probably just coincidental, but in The Phantom Menace, Jar Jar Binks has essentially the same line ("Whosa are yousa?" [29:00]) delivered with equal stresses on "Whosa" and "yousa," which is the same way Anakin says it here.