Has
have
To lunch - действительно вполне себе самостоятельный глагол и его можно использовать без have.
Но раз в данном случае его нужно употребить, то воспринимай это как устойчивое выражение, по типу have breakfast)
<span>A
1 are you going / Are you going
2 I don't know / like
3 think / is talking / do
4 Do you know / Dave is doing / is writing
5 does Tom live / comes / speaks
B
comes / lives / doesn't live / live / works / teaches / doesn't work / works
C
is / is painting / are riding / are wearing / read / am writing / sends / wants
/ asks / want / don't know
D
are / are having / are palying / am sitting / eat / am drinking / is eating /
is walking / watches / plays / love
E
live / get up / have / stays / start / starts / meet / finish / go /makes
F
1 Does… paint / doesn't / paints
2 Do…do / do / do
3 Is…washing / is / washes
4 Does… play / doesn't / plays
5 Are…going / go
</span>
2.Didn't use to like
3.Used to have
4.Didn't use to worry
5.Used to stay
6.Used to pretend. - Used to laugh
15) You mustn’t unplug the computer.
16) You aren’t allowed to move your computer when it’s on.
17) You mustn’t clean the computer with polish.
18) You aren’t permitted to write personal emails.