—You see, “Food Safety” receives thousands of Internet hits a day.—Yes, it becomes one of the _________ topics(话题) these days.
﹣﹣﹣What's twenty and fifty?
﹣﹣﹣It's ____________________.( )
fifty
seventy
eighty
ninety
If the weather is nice,we could have a(n)___________ in the park.( )
picnic
chance
place
idea
Jim started to play ___________ violin when he was five.( )
a
an
the
/
He is the authorof three books on art and many readers love his works.( )
seller
helper
writer
teacher
Who's going to look afterthe children when their mother is in hospital?( )
take care of
run after
go up
get over