______ it's a public holiday today,some firefighters in our city are still on duty.( )
A.AlthoughB.OnceC.If
-Which is _______ season in Lhasa?
-I think it's summer.( )
good
better
best
the best
I hope to go to France some day _______ there are many famous museums.( )
though
unless
because
where
Tom with his friends _______ to Shanghai many times before.( )
have gone
have been
has gone
has been
Don't make noise in the hospital, _______?( )
do you
will you
won't you
don't you
It's important for us _______ to our teachers when we have problems.( )
to talk
talking
talks
talk