Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions. 5. This part of the river has seriously polluted with toxic waste from local factories. A. of B. from C. seriously D. with 6. I am studying with a boy who mother is working with my sister. A. am studying B. who C. is working 7. In Viet Nam, it often rains a lot on summer. A. In B. rains C. a lot 8. We are looking forward to spend our summer vacation in the country. A. are B. to spend C. summer vacation D. in BC or D on your answer sheet to indicate the correct answer to each Jattan 1 D. my sister D. on
