25. The farmers once used wood to build a house ______ to store grains all the year round.
| A．how | B．what | C．in which | D．in where |
The students ________ from the whole class are expected to bring us honor in this school sport meeting.
| A．selecting | B．selected |
| C．to select | D．having selected |
_________ you take an active part in physical activity ______ be able to keep fit and stay healthy.
| A．Only if; you will | B．Only if; will you |
| C．Unless; you will | D．Unless; will you |
The entire hall burst into a great cheer and applause _______ the Nobel Prize winner appeared on the stage accompanied by the chairman.
| A．until | B．while | C．by the time | D．the moment |
When I entered the room I found my father _______ in the sofa and __________ in a magazine.
| A．seated; absorbed | B．sit; absorb |
| C．sat; absorbed | D．sitting; absorbing |
Everyone is encouraged to _____ something to those who suffered a great deal in the earthquake.
| A．construct | B．connect | C．contribute | D．collect |