—Where is our English teacher?
—She is in the classroom, _____ the exercises _________ the students have done at home.
| A．explaining; / | B．explaining; for |
| C．explained; to | D．explained; from |
Jenny worked hard before the final examination, and it _______ ．She got an A．
A．showed off B．paid off C．put off D．took off
---What did the Englishman say?
---Oh, he asked where ____ .
| A．did you come form | B．do you come from |
| C．you came from | D．you did come from |
I remember a ____ famous scientist said that we should believe in ourselves first of all.
| A．some | B．certain | C．sure | D．other |
Have you got any particular plans for the coming holiday?
Yes. _____, I’m going to visit some homes for the old in the city.
| A．If ever | B．If busy | C．if anything | D．if possible |
_____ get a better score, she has been studying hard all day.
| A．So as to | B．In order to | C．So that | D．In order that |