there were some trees thirty years ago 【改为一般疑问句】是什？

改写句子题(根据要求改写)

1 Yang ling watered trees yesterday。(改为一般疑问句) Did Yang Ling water trees yesterday？ 2 They were here just now。 (改一般疑问句) Were they here just now? 3 It was on the desk amoment ago?(改为一般疑问句) Was it on the desk a moment ago? 4 Ben runs faster than me(改为一般疑问句) Does Ben run faster than Mike? 5 He went s...全部

  1 Yang ling watered trees yesterday。(改为一般疑问句) Did Yang Ling water trees yesterday？ 2 They were here just now。
  (改一般疑问句) Were they here just now? 3 It was on the desk amoment ago?(改为一般疑问句) Was it on the desk a moment ago? 4 Ben runs faster than me(改为一般疑问句) Does Ben run faster than Mike? 5 He went swimming late Tuesday。
  改为一般疑问句) Did he go swimming last Tuesday? 6 David and his sister do homework every evening。(改为 一般疑问句) Do David and his sister do homework every evening?。
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