Taking a subway in Chengdu is much_________ than taking a taxi.( )
cheap
cheaper
cheapest
Mr.Smith knows a lot about China he has never been to our country.( )
although
until
if
since
Rainy days make me relaxed.I love drinking tea while it .( )
was raining
is raining
has rained
rained
The dictionary belong to Sam.You can see his name on it.( )
can
must
need
would
Nelson exercises because he has too much work every day.( )
usually
always
often
seldom
Humans can not make progress dreams.( )
with
without
through
about