Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions.

Câu hỏi

It took them at least two months learning how to pronounce these words.

A. took

B. at least

C. learning

D. to pronounce

Đáp án
C. learning

Câu hỏi thuộc Bài tập:

E9- TĐ- Đề ôn số 4