He was sitting in an armchair, ___ a novel 

During the 1960s, songs about winter ___________ by many famous rock groups were popular among people of different ages.

Mr Smith, _________ of the ___________speech, started to read a novel. 

Thank you very much for the trouble you have taken _________ me with my English.

_________ with the size of the whole earth, the biggest ocean does not seem big at all.