33. I can't go to bed with an mind until I know she's safe.
It was the first time ________ I ________ face to face with a thunder storm.
We were having a meeting _________ suddenly someone knocked at the door.
The old woman has _______________ too many hardships in the past 10 years.
---Why don’t you ______ your ideas on paper? Then you won’t forget them. --- Sounds a good idea.
Mr Smith has_______ cancer for two years but he is still working very hard.