Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.

Câu hỏi

One of our lawyers _______________ the case.

A. has studying

B. has been studying

C. was studied

D. had studying

Đáp án
B. has been studying

Câu hỏi thuộc Bài tập:

Bài tập Luyện thi vào lớp 10 - Phần Ngữ pháp (Mã 006)