. The country has already sent up three unmanned spacecraft, the most recent ______ at the end of last March.
| A．has been launched | B．having been launched |
| C．being launched | D．to be launched |
110. Take the orange and ____ it not in half, but into quarters.
| A．separate | B．divide | C．part | D．Divorce |
109. When he saw the enemies, the soldier _____ the gun.
| A．made a dive for | B．took a dive for | C．made a dive at | D．took a dive at |
108. Dr. Manette had been mentally ____ by his long years alone in prison and his hair had turned white.
| A．disturbed | B．troubled | C．worried | D．Damaged |
107. The Curies are best known for ____ radium and they won the Nobel Prize in 1903.
| A．discovering | B．inventing | C．finding | D．Creating |
106. Where are my keys? They seem to have ____.
| A．found | B．appeared | C．disappeared | D．Discovered |