Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction.

Câu hỏi

The clients’ information, which is used primary for scientific purposes, will be kept confidential.

A. which

B. for

C. confidential

D. primary

Đáp án
D. primary

Câu hỏi thuộc Bài tập:

E10- I-learn- Unit 2(3)