Fill in the blanks with articles 'a', 'an'
or 'the':
I invited _____ doctor as a guest.
A a
B the
C an
D none of these
The answer can also be "a". How can we guess what answer you have in your mind?
Ans 1:
Class : Class 6
The correct answer should be A. We are not talking about a particular doctor. It just means that some doctor was invited as a guest. There is no prior reference of any doctor!