---Three people got killed by two explosions.
---When was __________?
---________ was on April 15 __________ the 2013 Boston Marathon was being held．
| A．that; It; when | B．this; This; that |
| C．this; It; when | D．that; It; that |
" Neal, listen，" she said, looking straight at him. " I ask you not to get __________ in this kind of matter. It's none of your business. "
| A．caught |
| B．involved |
| C．attached |
| D．connected |
It's impossible for him to escape __________ this time; he made such a big mistake.
| A．to punish |
| B．punishing |
| C．being punished |
| D．having punished |
In the near future, more advances in the robot technology __________ by scientists.
| A．are making |
| B．are made |
| C．will make |
| D．will be made |
You should study the details of the policy __________ before you sign it.
| A．in return |
| B．in advance |
| C．at ease |
| D．on purpose |
The children are full of __________. They have been playing all day long without resting.
| A．force |
| B．power |
| C．energy |
| D．strength |