☆( )The telephone was invented______.A.on 1870s B.in 1870’s C.on the 1870’sD.in the 1870s

分类: 作业答案 • 2022-08-10 16:35:36

问题描述：

☆( )The telephone was invented______.
A.on 1870s
B.in 1870’s
C.on the 1870’s
D.in the 1870s

答

D.
表示年代的应该不用’的吧.