Hong Kong’s Occupy Central protesters(抗议者)______ roadblocks on the main roads and they brought trouble to the public.
It’s quite me why such things have been allowed to happen.
My sister was against my suggestion while my brother was_________it.
He suddenly saw Sue _____ the room. He pushed his way ____ the crowd of people to get to her.
No one helped me . I did it all myself .
To understand the grammar of the sentence,you must break it______ into parts.