Questions 51-54: Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions: (1,0 point)

Question 51. Last week we has a memorable trip to a new zoo in the city.

A. has                          B. memorable             C. to                             D. in

Question 52. They are coming to Tien Giang province who has many kinds of good fruits.

A. are coming              B. to                             C. who                         D. kinds of

Question 53. I suggest that we to give a presentation about water and air pollution.

A. to give                    B. a presentation        C. about                       D. and

Question 54. In these countries with the major conflicts, living conditions were the most difficulty or dangerous.

A. In                             B. conflicts                   C. living                        D. difficulty