Read the given extract and answer the questions that follow :
A snake came to my water trough
On a hot, hot day, and I in pyjamas for the heat, To drink there.
In the deep, strange-scented shade of the great dark carob-tree.
(a) The poet came to the water trough to ............
(b) What made the snake come to the poet’s water trough?
(c) The poet had to wait for his turn because ...........
(d) ‘I’ refers to ......... .
