Fill in the gaps with correct word given in the brackets. a) Which is ....... longest rives in the world (a/an/the) b) He was born ..... 1975(by/in/on) c) Let's play ...... (will you/shall we/do we) d) I spent the night studying ... I wanted to get good grades.(because/to/so that) e) She did it ....................(herself/himself/yourself)