`11` watches
`12` don't read
`13` is / plays
`14` Do your students play
`15` are your children/ are playing
`16` are you doing / am unloading
`17` Is Nam working
`18` help / is doing
`19` did you do / visited
`20` doesn't have
`21` noisy
`22` bakery
`23` teacher
`24` teeth
`25` sailing
`26` fifth
`27` smaller
`28` usually
`29` oldest
`30` drives