We are all for your proposal that the discussion ______.

There       be any difficulty about passing the road test since you have practised a lot in the driving school.

---The research on the new flu virus vaccine is challenging and demanding. Who do you think can do the job?  ---____ my students have a try?

It is essential that these application forms ______ back as early as possible.

If no passers-by _____ a blind eye to the injured little Yueyue in Foshan Guangdong, she _____ alive now．