Use the right forms to complete the sentences


When I was in Great britain, I often (understand) what english people were saying.
I know Bob (understand) my question yesterday
They dont (understand) Italian.
Do you think Tom (understand) What he is doing

Спасибо, очень помогла

When I was in Great Britain, I often (understood) what English people were saying. I know Bob (understood) my question yesterday. They don't (understand) Italian. Do you think Tom (understands) what he is doing.