No; sentences that you mark as being “easy” will not show up in your review sessions.
If you’d like add sentences that you’ve marked easy back into the pool of sentences to be reviewed:
1. Tap “Memory”
2. Tap “Easy” at the top
3. Select a sentence and click the ellipsis located on the right-hand side
4. Tap the “brain-check” icon to remove the sentence from your “easy” list