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.
Every day in summer, but especially at the weekends, all kinds of vehicles bring crowds of people to enjoy the various attraction.
A.at
B.bring
C.crowds of people
D.attraction

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.
Having been identified the causes of global warming, scientists have worked out some solutions to reduce its effects.
A.worked out
B.Having been identified
C.to reduce
D.of

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.
It was on 12th April, 1961 when the first human, a Soviet cosmonaut, flew into space.
A.flew
B.into space
C.a Soviet cosmonaut
D.when

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.
The scholarship that Wilson received to study history at Cambridge presented an unique opportunity.
A.The scholarship
B.at
C.an
D.Cambridge

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.
Your trip to London sounds absolutely fascinated, I’d love to go there.
A.to
B.sounds
C.fascinated
D.there

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.
The assumption that smoking has bad effects on our health have been proved.
A.effects
B.have been proved
C.smoking
D.on

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.
Upon reaching the destination, a number of personnel is expected to change their reservations and proceed to Hawaii.
A.reaching
B.proceed to
C.is
D.to change

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.
Thanks to sheer (A) hard work, the young entrepreneur has (B) successful managed to (C) launch a magazine (D) of his own.
A.hard work
B.successful managed
C.launch 
D.of his own

Which is NOT mentioned as one of the problems of Black Friday?
A.Sometimes violence occurs at Black Friday events.
B.Nobody really saves any money on Black Friday.
C.Stores run out of high demand items quickly.         
D.There are large crowds and lots of shoving.

The word "them" in paragraph 2 refers to ______.
A.organisms                           
B.traits                        
C.animals                   
D.plants