3. In the four years from 1989 to 1992, the gross national product _______ by an average of over 10% per year.
(A) falls
(B) fell
(C) is falling
(D) will fall

答案：登入後查看
統計： A(137), B(637), C(148), D(37), E(0) #1258240

詳解 (共 2 筆)

#2493623

1989 to 1992已過去,所以用過去式。 fall fell fallen。

6
1
#1642750
為甚麼B
6
1