Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test English Grammar Fill in the Blanks
Select the correct preposition from the options given below :-
I have been working______ four hours now.
1
by
2
for
3
from
4
More than one of the above
5
None of the above