30. To prevent sewage from entering the waterways and protect public health, the city councilman strongly demanded that the sewage system_in three months.
(A) improved
(B) to improve
(C) was improved
(D) be improved

答案：登入後查看
統計： A(18), B(34), C(50), D(217), E(0) #917478

詳解 (共 3 筆)

#2693139
demanded that  ........
(共 50 字，隱藏中）
前往觀看
10
0
#1228871
sewage 污水
city councilman 市議員
 
4
0
#1422884
demanded that +v原
2
0