—Why does the lake smell terrible?
—Because large quantities of water __________.
| A．have polluted | B．is being polluted |
| C．has been polluted | D．have been polluted |
30．—Why do you leave your daughter alone without worrying about her?
—She will ____ leave home to lead her own life．
| A．consequently | B．previously | C．roughly | D．Eventually |
29．I'm told that www．languagepractising．com is a free website ____ learners can not just learn various languages but also chat online．
| A．that | B．which | C．where | D．Whose |
28．China won Olympic gold in the women's short track 3,000 metres relay on Wednesday, with Canada ____ the silver．
| A．picking up | B．taking up | C．looking up | D．bringing up |
27．Shanghai Expo has been building an Expo Village for the participants, but other choices will also be ____ if the Expo Village does not satisfy their needs．
| A．accessible | B．available | C．affordable | D．Approvable |
26．Though ____ to go to bed many times, the little boy just turned a deaf ear and fixed his eyes on the cartoons．
| A．urging | B．being urged | C．urged | D．having urged |