28.
(A) is isolated
(B) had isolated
(C) has isolated
(D) has been isolated

答案：登入後查看
統計： A(2), B(9), C(4), D(18), E(0) #680750

詳解 (共 1 筆)

#1275480

Since then Australia __(28)__ from the rest of the world by vast oceans.自從那之後，澳洲被廣大的海洋隔離在世界的另一個部分。
since then 搭配過去完成式表示過去某個時間之前完成的動作，句型:had + Vp.p.。by指被，需搭配被動語態:be動詞+Vp.p.。
=>過去完成被動 had been Vp.p.

1
0