Respuesta:
3_is doing
4_is working
5_are playing
6_are waiting
7_is not cooking
8_Is Lucas studying
9_Is Ryan playing
10_ are painting
11_ is helping
12_ is not listening
13_ is not drinking
14_ am vacuuming
15_is watching
16_is she eating
17_is your dog hiding
18_are you reading
19_is driving
20_am washing
