She...........(go) to the cinema before she........(come) home
She had gone to the cinema before she came home.
By the time the police...........(arrive), the thief......(escape).
By the time the police arrived, the thief had escaped.
They.........(talk) on the phone before they.....(go) to bed.
They had talked on the phone before they went to bed.
If I ___________(be) a baby, I __________(sleep) and _______(play) all day.
(The fact is, you are NOT a baby now)
My boss ........(not explained) the task, so we .....(not know) what we had to do.
"My boss hadn't explained the task, so we didn't know what we had to do.
She would have become a teacher if she had gone to university
type 2: imaginary situation, untrue to present, if-clause (past), main clause (would + bare infinitive)
type 3: situation that didn't happen, and to imagine the result of this situation... if + past perfect, ...would + have + past participle
His wife .....(not cook) a meal, so they............(order) a pizza to take away.
His wife hadn't cooked a meal, so they ordered a pizza to take away.