---Where will you start your work after graduation?---Mmm, it's not been decided yet. I ____ continue my study for a higher degree.
I couldn't help _____ when I heard the joke.
She was noticed ______ the shop.
I remember _____ someone ____ the umbrella away.
The noise of the desks _____ could be heard in the next classroom.
The old man didn’t know whether to sell the car or____ .