In difficult times， there are always national heroes_____step up and bring people hope．（ ）
| A． |
whom |
B． |
which |
C． |
who |
As a middle school student，we should start thinking about _____ for our country in the future．（ ）
A．what we didB．what did we do
C．what we can doD．what can we do
What's the news about？
People near the lake didn't allow them to ______ a factory so as not to pollute the water．（ ）
A．look upB．put upC．take upD．set up
Keep working hard，Paul．You will surely realize your dream of being a writer you give it up halfway．
I will，thank you，Miss Rowling．（ ）
A．unlessB．ifC．sinceD．though
I don't know where to go this summer vacation．
Why not ______ visiting Mount Tai？There are many places of interest there．（ ）
A．wonderB．considerC．regardD．been
It's to stick your chopsticks into your food while having dinner．
I'm sorry．I won't do that again．（ ）
A．kindB．politeC．rudeD．proud