The 31 stOlympic Games will take place ________ August,2016.( )
in
on
at
I can't find my bag.Maybe someone took it _______.( )
in fact
by mistake
by accident
in person
The more knowledge you get,the _____you will be.( )
braver
poorer
stranger
smarter
Larry,____the cake into six pieces and share them with your friends.( )
mix
turn
make
divide
Too many cars are_____to be environment,so we'd better take the bus more.( )
useful
harmful
helpful
meaningful
Jim goes to see movies because he's too busy.( )
often
always
usually
seldom