父母回家时，孩子们还没睡着。
The children weren't sleeping when their parents got home.
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weren't英 /wɜːnt/|美 /wərnt/
sleeping英 /ˈsliːpɪŋ/|美 /ˈslipɪŋ/
解释
weren't 是 were not 的缩写，weren't + sleeping 构成过去进行时否定式，否定父母到家时孩子正在睡的状态。
The children weren't sleeping when their parents got home.
weren't 是 were not 的缩写，weren't + sleeping 构成过去进行时否定式，否定父母到家时孩子正在睡的状态。