АНГЛИЙСКИЙ.
Task lll. Use the Present Perfect or the Present perfect Continuous
a. I (eat) for 15 minutes.
b. The boy (already do) the task.
c. They (not buy) a bottle of water yet.
d. The family (be) in the shopping centre for three hours
e. How long your mother (prepare) dinner?
f. The student ( decide) what to do for a long time.
I have been eating for 15 minutes.
The boy has already done the task.
They haven't bought a bottle of water yet.
The family has been being in the shopping centre for three hours.
How long has your mother been preparing for dinner?
The student has been deciding what to do for a long time.