---Where is our English teacher?
---She is in the classroom, _______ the exercises _______ the students have done at home.
| A．explaining; / | B．explaining; for |
| C．having explained; to | D．explained; from |
---Are you ____ about food?
---No, anything will do.
| A．curious | B．anxious | C．particular | D．cared |
____ lack of energy, he still kept on helping the injured people.
| A．Thanks to | B．Due to | C．Despite | D．Even if |
We are worried about ____ they can be rescued.
| A．that | B．whether | C．if | D．what |
You will never arrive at ____ is considered the Heaven on the Earth.
| A．which | B．that | C．what | D．where |
If you go into a store and feel that the clerk is being rude, stop and think that she____ a tough day, and put yourself in her shoes.
| A．may have | B．may have had | C．must have | D．should have had |