The following six sentences come from a paragraph. The first and the last sentences are given. Choose the order in which the four sentences (PQRS) should appear to complete the paragraph.
S1 : Todd borrowed this dollar last year on the 8th of April.
S6 : And I said, 'certainly'.
P : He needed a dollar to pay his taxi and I lent it to him.
Q : He merely said, 'Let me have a dollar, will you'!
R : It happened quite simply and naturally.
S : I hardly realised it till it was all over.
The proper sequence should be: