Someone who lacks perseverance is unlikely to _______ a good researcher.
—I missed the first part of the film. It was really a pity.—You __________ home half an hour earlier.
We will be free tomorrow, so I suggest ________ to the history museum.
The last factory ______ I am going to visit is the place _____ my mother worked five years ago.
I have told you the truth. ________ I keep repeating it?
How long can you ________ your breath underwater?