11. In the past, science was taught by the textbook method; _____ it is taught by the laboratory method.
(A) now
(B) so
(C) then
(D) while

答案：登入後查看
統計： A(286), B(12), C(27), D(45), E(0) #2077730

詳解 (共 1 筆)

#3683546
In the past, science...
(共 226 字，隱藏中）
前往觀看
1
0