It is difficult to trace the history of certain an...
Câu hỏi: It is difficult to trace the history of certain ancient beads because they __________.
A are small in size
B have been buried underground
C have been moved from their original locations
D are frequently lost
Câu hỏi trên thuộc đề trắc nghiệm
Đề luyện thi THPT Quốc gia môn Anh 2018 - Đề số 10 (có video chữa)