List of top General Aptitude Questions on English Grammar asked in GATE PI

References : ................. : : Guidelines : Implement
(By word meaning)

“You are delaying the completion of the task. Send ................. contributions at the earliest.”

Consider the following sentences:
(i) I woke up from sleep.
(ii) I wok up from sleep.
(iii) I was woken up from sleep.
(iv) I was wokened up from sleep.
Which of the above sentences are grammatically CORRECT?