Mark the letter A, B, C or D on your answer sheet to indicate the option that needs correcting

Mark the letter A, B, C or D on your answer sheet to indicate the option that needs correcting
 Câu1: Why don't we to install solar panels on the roof of the house ?
             A              B        C                                               D 
Câu2: The test isn't enough easy for us to finish. 
                           A            B           C           D
Câu3: Nam has studied English for he was twelve years old
                          A                        B          C                   D
Read the following passage anf mark the letter (A, B, C or D) on your answer sheet to indicate the best option to complete each of the following numbered blanks from 13 to 17
         In most countries, almost all school (1)....... private until the early 1800's. At that time, many government leaders began to encourage development of public schools to promote national progress by (2)..... education widely available to citizens. Today, the number of public and private schools differs (3)..... one country to another. In many deceloped countries, private schools ofter a general focus on (4)..... for college; a special focus on science, music or other subject areas; and religious instruction. The Roman Catholic Church is one of the (5)...... sponsors of private schools throughout the world 
  Câu1: A. had          B. were         C. have                D. are
  Câu2: A. make       B. made        C. to make           D. making
  Câu3: A. from         B. with          C. about               D. at
  Câu4: A. much       B. larger        C. more                D. largest