問題詳情

19. Taipei 101 _______ the tallest building in the world, but it is still an important landmarkin the city.
(A) has been
(B) used to be
(C) is
(D) is once

參考答案

答案：B
難度：簡單0.696
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用户評論

【110東區事務】評論

人  used to Vr                ...

【想念日本的蔥抓餅】評論

used to★★★★★★★★★★★★，...

【in_my_dream17】評論

(B) used to be→ used to + V 過去常態(D) is once→ was once 過去曾經

【csr830504】評論

(A) has been 以前到現在，一直還是