Unit 2: Abbreviations, initials and acronyms
Unit 8: Across, over or through?
Unit 9: Actual and actually
Unit 14: Affect or effect?
Unit 16: After, afterwards
Unit 23: All right and alright
Unit 24: Allow, permit or let?
Unit 25: Almost or nearly?
Unit 26: Alone, lonely, or lonesome?
Unit 27: Along or alongside?
Unit 29: Already, still or yet?
Unit 30: Also, as well or too?
Unit 31: Alternate(ly), alternative(ly)
Unit 32: Although or though?
Unit 33: Altogether or all together?
Unit 35: Among and amongst
Unit 36: Amount of, number of or quantity of?
Unit 39: Any more or anymore?
Unit 40: Anyone, anybody or anything?
Unit 42: Apart from or except for?
Unit 48: Around or round?
Unit 49: Arouse or rouse?
Unit 53: As if and as though
Unit 54: As long as and so long as
Unit 57: As, because or since?
Unit 58: As, when or while?
Unit 62: At, in and to (movement)
Unit 63: At, on and in (place)
Unit 64: At, on and in (time)
Unit 65: Away and away from
Unit 69: Because, because of and cos, cos of
Unit 75: Beside or besides?
Unit 76: Between or among?
Unit 80: Bring, take and fetch
Unit 81: British and American English