摘要： The parents waved and the train until it was out of sight. A. saw B. noticed C. observed D. watched
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The parents waved and _____ the train until it was out of sight.
A. saw B. noticed C. observed D. watched
查看习题详情和答案>>The parents waved and _____ the train until it was out of sight.
|
A．saw |
B．noticed |
C．observed |
D．watched |
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