The second —— invention is computer

The second —— invention is computer The computer is ______ useful invention in the modern wored. the computer is the most important invention in human histor ( ) wonderful invention the computer is!--- I agree .I even 英语作文 The most helpful invention is computer 以“The most useful invention ——computer”为题写一篇不少于80词的短文. The most useful invention ——computer 写一篇英语作文 以The most useful invention ——computer 为题,写不少于70字的英语作文 The computer is a great invention，请问为什么computer不是复数？一般我们说一类东 纠结的英语选择题the telephone is second __ invention A.useful B.more The invention of the modern computer is one of the greatest ( ) 7.____ useful invention the computer is!A.What a B.What