QUES: Continue writing.

Neil wasn't a proficient percussionist while Robert was very accomplished.
+++++++++
ANS: Neil was forced to play the triangle for the orchestra.

QUES: Continue writing.

While they were both at the gym, Dennis helped Adam get more muscular since
+++++++++
ANS: Dennis was the trainer.

QUES: Continue writing.

There was more iron in the meteorite than in the rock because the
+++++++++
ANS: rock was smaller.

QUES: Continue writing.

James managed to put the file into the crack because the
+++++++++
ANS:
crack is wide enough.