12: Lenses, ____________, are used to correct imperfections in eyesight.
A. are the forms of glasses and contact lenses
B. in the form of glasses and contact lenses
C. glasses and contact lenses which form
D. glasses and contact lenses may be formed
Bạn đang xem 12: - Bộ đề luyện thi THPT Quốc gia môn tiếng Anh mới nhất