Question

请教4道英语单句改错，请改正并说明原因，然后翻译一下句子意思，谢谢了

每句被括号扩住的四处有一处有错，请指出改正并说明原因，然后翻译一下句子意思，谢谢了
62. Because they were 【unaware of (A)】【his interest in the building (B)】, they did not understand why he felt 【so(C)】bad about【it’s being condemned (D)】

63. The lecture【had begun (A)】,【he felt his seat (B)】 【so quietly(C)】 that no one complained that 【his leaving (D) disturbed the speaker.

64. Scientists have【recently（A）】 argued that Einstein’s 【contributions to physics （B）】and mathematics【are less important（C）】【as Newton’s (D)】
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65.The idea 【that (A)】learning【is a lifelong process (B)】 【has expressed (C) 】by philosophers and educationalists【throughout the centuries(D)】

Answer 1

基本完全同意三级这哥们的，只有其中第63题：B项应改为[and he left his seat], 因为要加连词才能成为一句完整的话