Ordering of Words

In each question below, there is a sentence of which some parts have been jumbled up. Rearrange these parts which are labelled P, Q, R and S to produce the correct sentence. Choose the proper sequence.

1.When he 

P : did not know 

Q : he was nervous and 

R : heard the hue and cry at midnight

S : what to do

The Proper sequence should be:

RQPS QSPR SQPR PQRS

2.It has been established that 

P : Einstein was 

Q : although a great scientist 

R : weak in arithmetic

S : right from his school days 

The Proper sequence should be:

SRPQ QPRS QPSR RQPS

3.Then 

P : it struck me 

Q : of course 

R : suitable it was 

S : how eminently

 The Proper sequence should be:

SPQR QSRP PSRQ QPSR

4.I read an advertisement that said

P : posh, air-conditioned 

Q : gentleman of taste

R : are available for 

S : fully furnished rooms 

The Proper sequence should be:

PQRS PSRQ PSQR SRPQ

5.Since the beginning of history 

P : have managed to catch

Q : the Eskimos and Red Indians

R : by a very difficulty method

S : a few specimens of this aquatic animal

The Proper sequence should be:

QRPS SQPR SQRP QPSR