12) is your sister doing, is washing
13) works
14) are you doing, am waiting
15) Does he speak, speaks
16) is knocking
17) are writing
18) writes
19) travel
20) is smoking
21) is not raining
22) Do you hear, am listening, I don't hear
23) smokes
24) is ringing
25) has, has
26) does he live, lives
27) is dancing
28) read
29) am sitting
12) is your sister doing, is washing
13) works
14) are you doing, am waiting
15) Does he speak, speaks
16) is knocking
17) are writing
18) writes
19) travel
20) is smoking
21) is not raining
22) Do you hear, am listening, I don't hear
23) smokes
24) is ringing
25) has, has
26) does he live, lives
27) is dancing
28) read
29) am sitting