A because first rhymes with shirt and rose rhymes with nose.
A purple flower called violet. The poet describes the flower. Beauty is the theme of the poem, and as the poet has repeated the words "modest violet", it shows that she likes the flower, hence the repetition of the words show her attitude of inclination towards the flower.
The answers are the following:
"For once, at least, I grasped the mental operations of the Morlocks. Suppressing a strong inclination to laugh, I stepped through the bronze frame and up to the Time Machine;"
" I was surprised to find it had been carefully oiled and cleaned. I have suspected since that the Morlocks had even partially taken it to pieces while trying in their dim way to grasp its purpose "
