The proposal seemed like a good idea. The manager refused it.

The proposal seemed like a good idea. The manager refused it.
A. The manager didn't like to proposal because it didn't seem a good idea.
B. Since the proposal seemed like a good idea, the manager refused it.
C. The manager refused the proposal although it seemed like a good idea.
D. The proposal didn't seem like a good idea, so the manager didn't accept it.

Đáp án C

Quan hệ tương phản giúp ta có thể chọn ngay câu C với although.
Tạm dịch: Đề xuất có vẻ là một ý tưởng tốt. Giám đốc đã bác bỏ.
~ C. Giám đốc bác bỏ đề xuất dù nó có vẻ tốt.