What / tractors / do /?
A.What can the tractors did?
They can plow and break the soil, distribute manure and plant potatoes.
B.What can the tractors do?
They can plow and break the soil, distribute manure and plant potatoes.
C.What can the tractors do?
They can plow and break the soil.
D.What can the tractors do?
They could plow and break the soil, distribute manure and plant potatoes.

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions from 3 to 6
This class has cancelled because too few students had registered before registration closed.
A.has cancelled    
B. too few     
C.had registered     
D.before

By the time Jane, the editor and copywriter, comes back, things will change completely.
 
 
 
 
 
A. comes   
B.copywriter
C. will change 
D.the

_______ is the price of this car .
A.What interested in us
B.What we are interested in 
C. That interested us
D.That we are interested in

The stories about UFOs caught the.................. of the whole class. (imagine)
A.imagination
B.imaginable
C.imaginablity
D.imaginably

A.curriculum
B.economics
C.hesitation
D.calculation

Choose the correct answer to fill in the blanks. 
"Officer, can you tell me how to get to Springfield?" "Sure, what part of Springfield ________ to go to?"
A.do you want     
B.you want 
C.that you want
D.where you want

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
We ________ have been married for twenty-five years on our next anniversary.
A.must
B.should
C.will
D.could

We won't know the value of health until we will lose it.
A.the value
B.of
C.will lose
D.it

________(7)
A.person
B.theirs
C.people
D.them