Find errors
1) i'm not satisfied with (a) your explanation of where (b) you was last night (c). no error (d)
2) i came into (a) the room when (b) mary played the piano. (c) . no error (d)
3) the man (a) was driving (b) herds of cattle. (c) . no error (d)
4) there is (a) some sheep (b) in the field (c) no error (d)
5) playing (a) the drums and (b) singing are difficult.(c) no error (d)