SCHOOL EDUCATION SYSTEMI. HÃY CHỌN MỘT CÂU TRẢ LỜI ĐÚNG NHẤT

41. - ON THI TRAC NGHIEM TIENG ANH 12BAM SAT
ON THI TRAC NGHIEM TIENG ANH 12BAM SAT

41. The telephone _______ by Alexander Graham Bell.

A. is invented B. is inventing C. invented D. was invented