They lay almost flat and ______ through the tube like underground passage.

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问题 They lay almost flat and ______ through the tube like underground passage.

选项 A、climbed
B、crawled
C、slid
D、glided

答案B

解析 crawl意为“爬,爬行,匍匐而行”。[A]climb意为“攀登,爬上(树、墙、绳索、山等)或爬下”;[C]slid是slide的过去式,意为“在光滑表面上滑动或滑行”;[D]glide意为“滑行,滑翔”。
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