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.

Question 43: The introduction of the new species of plants into PhuQuoc island offer an opportunity to study the response of a natural system to stress.

A. new species            B. plants                      C. offer                       D. response

Question 44: A big wedding requires a lot of preparation, such as sending invitations, hiring costumes and choose dishes.

A. requires                  B. preparation             C. sending invitations D. choose

Question 45: Thanks to artificial intelligence, the phone's voice-recognition system converts the sound into numerous data.

            A. Thanks to               B. voice-recognition    C. converts                  D. numerous