Find out the correct sequence of sentences which are labelled as P, Q, R and S. The knocking P. were still in the house Q. for some time R. although the echoes of it S. ceased The correct sequence should be

Step-by-step solution

SRPQ. The subject of the sentence is "the knocking". It is required to be followed by a verb. So, the focus is on options starting with a verb i.e. (S) and (P). Consequently, option (4) is not considered. "Knocking" is a singular noun and cannot take the plural verb "were". So, option (3) is also not considered. The sense of the sentence is that first the knocking ceased. Thereafter, the echoes continued to exist for some time before eventually fading away. This sequence of actions does not fit with option (2). A f