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Relative Pronoun
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I don't know ______ he solved the problem.
A
what
B
where
C
why
D
how
Answer:
D. how
Related Questions:
I am ..... whom you want.
None so deaf as .....
He just turned away when I asked him----he meant
Everyone had to show ..... ticket.
Babu ..... parents are both teachers,won the prize in the competition.
