Directions: Each of the following sentence has a mistake in grammar usage or idiom. Each sentence is broken up into four parts sequentially 1, 2, 3 and 4. Choose the part which has an error and mark accordingly.
(a)(1) She is a good
(2) artiste who
(3) can able to
(4) dance and sing
(b)(1) Each of the
(2) six boys in
(3) the class has
(4) finished their task
(c)(1) The teacher
(2) observed that
(3) the Earth
(4) moved round the Sun
