She was so busy that she couldn't answer the phone.

A. She was very busy that she couldn't answer the phone.

B. She was too busy to answer the phone.

C. She was too busy not to answer the phone.

D. She was very busy so that she couldn't answer the phone.

Đáp án
B. She was too busy to answer the phone.

Câu hỏi thuộc Bài tập:

MODULE 21: CONJUNCTIONS (Exercise 2)