Identify the part of the following sentence which contains an error.
Since four (a)/ years he (b)/ has been (c)/ teaching here.(d)
1
(c)
2
(a)
3
(b)
4
(d)
Identify the part of the following sentence which contains an error.
Since four (a)/ years he (b)/ has been (c)/ teaching here.(d)