9. She built a _____ career, fuelled by her expertise in a niche area of digital marketing that few others had explored.
(A) provisional
(B) lucrative
(C) redundant
(D) sporadic

1. She built a _____ career, fuelled by her expertise in a niche area of digital marketing that few others had explored.

中文：
她建立了一份 _____ 的職涯，憑藉自己在一個少有人涉足的數位行銷利基領域中的專業能力。

(A) provisional（暫時的；臨時的）
The agreement is only provisional and may change later.
（這項協議只是暫時性的，之後可能改變。）

(B) lucrative（賺錢的；獲利豐厚的） ✅
He left his old job for a more lucrative position.
（他離開舊工作，轉而接受一份更賺錢的職位。）

(C) redundant（多餘的；被裁員的）
Many workers became redundant after the factory closed.
（工廠關閉後，許多工人被裁員。）

(D) sporadic（零星的；間歇性的）
There were sporadic protests in the city last year.
（去年城裡出現零星的抗議活動。）

答案：

(B) lucrative