Bears ______ fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.
| A．pack up | B．build up |
| C．bring up | D．take up |
The fire was finally ______ after the building had ______ for two hours.
| A．put off; caught fire | B．put away; been on fire |
| C．put out; been on fire | D．put out; caught fire |
. Between the two rows of trees ____ the teaching building.
| A．stand | B．stands | C．standing | D．are |
Mary is a lucky girl and she is the only one of the students who______ been to Paris.
| A．have | B．has | C．had | D．is |
.Is the school ______the foreigners visited yesterday large ?
| A．that | B．where | C．the one | D．what |
He is always full of ______ as if he never knew tiredness.
| A．strength | B．spirit | C．force | D．energy |