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

Question 40: Never in the history of humanity has there been more people living on this relatively small planet.

A. humanity                  B. has                            C. living                        D. relatively

Question 39: In early days, hydrochloric acid was done by heating a mixture of sodium chloride with iron sulfate.

A. In early days            B. done                         C. heating                     D. with

Question 36: It is unclear which agency will be responsible for cleaning the canal if it will become     polluted again

A                             B                                               C               D