According to paragraph 3, which of the following is most important for an effective survey?
A.A high number of respondents
B.A sociologist who is able to interpret the results
C.Carefully worded questions
D.An interviewer's ability to measure respondents' feelings

The word "precise" in line 10 is closest in meaning to
A.rational
B.accurate
C.planned
D.required

According to the passage, the main disadvantage of person-on-the-street interviews is that they
A.are used only on television
B.are not carefully worded
C.reflect political opinions
D. are not based on a representative sampling

The word "they" in line 8 refers to
A.interviews
B.opinions
C.North Americans
D.news shows

What does the passage mainly discuss?
A.The importance of polls in American political life
B.Problems associated with interpreting surveys
C.The history of surveys in North America
D.The principles of conducting surveys

- “Mai Phuong has been awarded a scholarship to stưdy in Australia.”
-  “Uh, really?____________!”
A.How lucky she is
B.What lucky she
C.What lucky she be
D.Lucky as she is

Choose the word whose main stress is placed differently from the others in each group

A.reference
B.delicacy
C.deficiency
D.conference

Now I know we were just too tired. Even with your help we ___ it.
A.shouldn’t finish       
B.wouldn’t be able to finish
C.wouldn’t have finished   
D.wouldn’t finish

- “____________________ is it from your house to the museum?”
-“Ten kilometres.”
A.How many 
B.How long 
C.How much 
D.How far

Thank God Sue came on time! ___ the keys without her?
A.Would you have found   
B.Would you find
C.Could you find       
D.Would you be able to find