The area ______ the explosion happened was closed off by the police.
| A．which | B．as | C．why | D．where |
I wonder whether the teacher is one of those who _______ to the mountain village to help the children there.
| A．have sent | B．has sent | C．has been sent | D．have been sent |
The book tells stories of the earthquake through the eyes of those _______ lives were affected.
| A．whose | B．that | C．who | D．which |
No sooner ______ at the airport than she was surrounded by many reporters.
| A．has the star arrived | B．the star has arrived |
| C．the star had arrived | D．had the star arrived |
Carl is studying ________ food science at college and hopes to open up ________meat
processing factory of his own one day.
/；aB. /；the C. the；aD. the；the
Bears ______ fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.
| A．bring up | B．pack up | C．take up | D．build up |