Question 50: In a famous experiment conducted at University of Chicago in 1983, rats kept from sleeping died after two and a half weeks.

A. conducted                 B. University of ChicagoC. rats kept                   D. half weeks

Question  49:  You  should  take  out  insurance  for  your  house  from  any  possible  damage.  Earthquakes sometimes occur here.

A. take out                    B. for                            C. from                         D. occur

Question  48:  We  had  about  ten  people  helping us  carry our  belongings  to  a  van  parking outside  when there was a sudden crash which made us turn round to find the big mirror lying in pieces on the ground.

A. ten people helping   B. van parking              C. which made us turn round     D. lying in pieces

Question 47: For thousands of years, people have used some kinds of refrigeration cooling beverages and preserve edibles.

A. have used                 B. kind                          C. cooling                     D. edibles

Question 46. When eggs of some species of insects hatch, the newly bom insects look almost like its adult counterparts.

A. When                       B. species                      C. look                          D. its

Question  45.  Our Spanish  teacher  would  prefer  us  spending  more  time  in  the  laboratory practicing  our pronunciation.

A. us                             B. spending                   C. in the                        D. practicing

Question 44: The University of Kentucky has held this prestigious title until 1989, when it was granted to the University of Georgia.

A. has held                    B. it                               C. was granted              D. to

Question  43:  Upon  reaching  the  destination,  a  number  of  personnel  is  expected  to  change  their reservations and proceed to Hawaii.

A. reaching                   B. is                              C. to change                  D. proceed to

Question 42: Her weigh has increased remarkably since she began receiving treatment.

A. Her                           B. weigh                       C. remarkably               D. receiving

Question 41: The number of wild horses on Assateague is increasing, resulted in overgrazed marsh and dune grasses.

A. number                     B. is                              C. resulted                    D. grasses