过去进行时表达了过去开始并在过去继续的行动，与当前无关。结构 was/were + Ving 简单，解答的关键是判断主语是单数还是复数的。 一、用括号中动词的过去进行时形式填空。1、The children ____ hide and seek in the park. (play)2、She thought he ____ at her. (stare)3、Mr. and Mrs. Green ____ in the dining room when the murder happened. (not/eat)4、The dogs ____ all night. (bark)5、He ____ the internet at three o'clock. (use)6、It ____ darker with each passing moment. (get)7、The gardener ____ the lawn. (water)8、The army ____ to London when the enemy attacked them. (go)9、You ____ cards when the murder happened. (not/play)10、The students ____ their assignments. (complete)11、You ____ to her at the moment. (talk)12、The kid ____ television all evening. (watch)13、The girl ____ to rock music. (listen)14、The birds ____ in the sky. (fly)15、I ____ to music when the murder happened. (not/listen)二、答案及解析1、were playing解析：主语 the children 是复数，所以用 were playing. 2、was staring解析：主语 he 是单数，所以用 was staring.3、weren't eating解析：主语 Mr. and Mrs. Green 是复数，所以用 weren't eating.4、were barking解析：主语 the dogs 是复数，所以用 were barking.5、was using解析：主语 he 是单数，所以用 was using.6、was getting解析：主语 it 是单数，所以用 was getting.7、was watering解析：主语 the gardener 是单数，所以用 was watering.8、was going解析：主语 the army 是单数，所以用 was going.9、weren't playing解析：主语是 you，所以用 weren't playing.10、were completing解析：主语 the students 是复数，所以用 were completing.11、were talking解析：主语是 you，所以用 weren't playing.12、was watching解析：主语 the kid 是单数，所以用 was watching.13、was listening解析：主语 the girl 是单数，所以用 was listening.14、were flying解析：主语 the birds 是复数，所以用 were flying.15、wasn't listening解析：主语是 I，所以用 wasn't listening.
