________ English has a history of over 2，500 years，the first English dictionary didn't appear until the 17th century.
| A． |
Because |
B． |
Although |
C． |
Unless |
Mr． Han， how is the weather in Anshun now， please？
Actually， it is cooler than ____ in Guiyang．（ ）
| A． |
it |
B． |
that |
C． |
this |
D． |
those |
France is ____ European country while Thailand is ____ Asian country．（ ）
| A． |
an，an |
B． |
an，a |
C． |
a，a |
D． |
a，an |
We're discussing why ______ for our health．（ ）
| A． |
are fast food bad |
B． |
fast foods are bad |
| C． |
fast food is bad |
D． |
is fast food bad |
I'm worried about the air．
______．There might be heavy pollution．（ ）
| A． |
Me too |
B． |
Never mind |
C． |
Of course |
D． |
Not yet |
It's hard to hold back the tears．This is ______thing I've ever heard．（ ）
| A． |
sad |
B． |
sadder |
| C． |
saddest |
D． |
the saddest |