"Money not-yet arrive. 'Do I'?" is the gloss version, not English.
It's showing you how to sign a sentence, sign by sign, so I would assume that's exactly how your instructor wants it signed,
for the classroom exercise.
That's not to say you would have to sign that way in "real" life. There is more than one correct way to sign that concept without following the exact signs used in the text example.
It will always be a truism that you sign one way in class, and another way in the real world. That's true regardless of the languages used. You get the basic foundation in class, then "tweak" it thru cultural exposure.
One other problem with a
printed conversation is that we don't really know the emotion or emphasis that is behind the topic. We can only guess at that. In ASL, degree and emphasis require different signs or at least different forms of a sign. One good example is, "I threw up last night." There's a big difference between spitting up once to get rid of a little excess phlegm, and puking up one's guts all night long from food poisoning. Same basic "text book" signs used: LAST-NIGHT, THREW-UP". But
very different ways of signing them.