_______ he was 12, Einstein had learned
题型:选择题
问题:
_______ he was 12, Einstein had learned advanced mathematics by himself.
A.As soon as
B.At the time
C.By the time
D.During the time
_______ he was 12, Einstein had learned advanced mathematics by himself.
A.As soon as
B.At the time
C.By the time
D.During the time