of the following questions.

79. The king's biodiesel oil project was first to introduce in 2001.

           A                                   B          C                 D

Bỏ to thêm ed

80. The Tesla Coil is used for create extremely powerful electrical fields.

                                    A             B            C                             D

VIng

81. IBM is an artificial intelligence computer system and is used to answering questions posed in natural

                                                A                                                B              C                            D

language.

Bỏ ing

82. Life without computers has seemed simply impossible now.

                  A                                B              C              D

1. seems

83. Kodak Company produced many OLED equipped products, which are being used to power the next

                                        A                                    B                                        C                      D

generation of ultra-thin televisions, since 1987.

Has produced

84. Vaccination has been used for a long time for prevent diseases.

                           A         B                      C                    D

Ving

85. The boat rudder was invented to steer large ships, which enabled the Chinese for building huge ships as

                                           A               B                                      C                                    D

early as 200 AD.

Enable sb To V

86. Many young people now use computers for playing games rather than study.

                                                A                              B                      C                D

Studying.

87. You can use a tablet to listening to music, surfing web or chatting with friends.

                                        A                B                  C                      D

To thành for.

88. Since the Internet was first created in the 1960s, it changed people’s lives a lot.

                                                A                      B                  C                                D

It has changed

89. Scientists have researched since years into ways of curing cancer patients.

                                    A              B               C                   D

Since thành for

90. Many teenagers now prefer chatting on the computer to meet face to face.

                                      A                    B                                  C            D

To meet thành meeting