You shouldn't keep silent when________.
My favorite movie ________ in the cinema now. Would you like to go with me and see it?
Being young means having all kinds of possibilities, so you should challenge your limits and go ______ your boundaries.
My sister was against my suggestion while my brother was _____it.
To improve your reading ability, you should ____ half an hour every day for learning new vocabulary.
Though he had tried to climb to the top of the mountain several times, he didn't _____.