i quesLIUI UU wie seriences UTC
8.6.10.1 Put the verbs in brackets into
the present perfect continuous.
1 Susan
........ (work) all night!
2 They ............... ..... (learn) English
for six years.
3 You look really tired. What ............
(you/do)?
4 Dina ...............
... (shop) since this morning.​