He (think/already) about what he isgoing to need for theexperiment He (buy) a video camera for his father last winter. they (have) breakfast together two days ago?Yes,
Ответ:
He has a lready thought about what he is going to need for the experiment
He bought a video camera for his father last winter.
Did they had breakfast together two days ago?Yes,
He has already thought about what he is going to need for the experiment.
— Did they have breakfast together two days? — Yes, they did.