题干
When the man walked ______ the library, he found a cat at the corner.
A：pass
B：past
C：passed
D：by
答案(点此获取答案解析）
B
When the man walked ______ the library, he found a cat at the corner.
A：pass
B：past
C：passed
D：by
与美国开展了能源政策对话；对俄的能源合作也呈现出多领域全面发展的良好态势；“中国—中亚”天然气管道开通。上述材料