______ it or not ,his discovery has created a stir in scientific circles

：Mr Baker, some students want to see you ______ they wait here or outside

－ What does the sign over there read － “No person ________ smoke or carry a lighted cigarette, cigar or pipe in this area”

We need friends to ________, or we will feel lonely（单选）—4分

2003年安徽阜阳出现的部分因食用劣质奶粉而形成的“大头娃娃”的患病原因主要是：_______

4．The weather in Beijing is colder than _________ ．

And they can ______their passports______，making leaving or “escaping” virtually impossible.

— Which city has _________population, Beijing, Guiyang or Nanchang?

— Beijing, of course.

（ ）Some students prefer yellow rulers or erasers when they study for exams because yellow is the color of __________.

______ it or not , his discovery has created a stir in scientific circles.

In speed reading, looking at your watch every 5 or 10 minutes ______.

Doctors are often caught in a _____ because they have to decide whether they should tell their patients the truth or not.