25.
(A) used
(B) fail
(C) was
(D) is

答案：登入後查看
統計： A(26), B(53), C(171), D(448), E(0) #441456

詳解 (共 3 筆)

#1669162

If one of the dolphins in a pod____sick or injured, the others "will" do their best to help out.

時間或副詞子句若表未來，動詞使用現在簡單式（代替未來）



24
0
#1479584
why?


4
2
#1529446

If "one" of the dolphins in a pod "is"

3
0