下面的填空怎样填

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下面的填空怎样填
下面的填空怎样填
 

下面的填空怎样填
1,am doing;do
2,is play;plays
3,Is;studying;is studying
4,are making;make
5,Is;talking;talks.

  1. am doing / do

  2. is playing / plays

  3. Is / studying / is studying

  4. are making / make

  5. Is / talking / talks