My brother hurt his legs when he rode his bike on the way back home.— ______.

The girl had hardly rung the bell ___ the door was opened suddenly, and out rushed her friend[ ]

Danny ________hard for long to realize his dream and now he is very popular.

_____we promise continuous increase in rural incomes_____improve the whole people’s well-being．

I guess Peter and his sister Sally enjoyed __________ at the dancing party.