Mount Tai is so famous that ____people visit it every day．（ ）
A．hundred ofB．seven hundreds of
C．hundreds of
Making paper bottles？Wow， great idea!
Thank you，We may use less plastic in this way．（ ）
A．howB．whatC．what anD．what a
Laura，how often do your family take a trip？
Hmm， ．（ ）
A．since last weekB．twice a month
C．for an hourD．ten days ago
I think our teacher．Mrs．Allen，knows everything．
I agree．Because she over 2，000 books．（ ）
A．readB．has readC．readsD．is reading
The 17﹣year﹣old high school student is trying to a robot which can think like a human．（ ）
A．discoverB．organizeC．inventD．achieve
Bill，does your sister have brown hair or red hair？
．She takes after my mother．（ ）
A．Yes，she doesB．No，she doesn't
C．Brown hairD．I don't know