1management is in a revealed in variety of specific а) doesn't it? b) does it? с) isn't it? 2 a manager should know how to organize and coordinate а) does he? b) shouldn't he? с) should he? 3 however the manager will rarely have all the knowledge he а)does he? b) is he? с) won't he? 4 managers must be competent in every aspect of а) must they? b) do they? с) mustn't they?