“If the government does not give any feedback or does not release a final report of the survey, the respondents will think they participated _______,” said the social scientist Hu

The libr D．tobeing cleaned

I usually sleep with the window open ________ it is really cold.

___________ the young girl ___________ her parentstake regular exercise in order to keep fit.

Do you like our English teacher —Yes. I think his class is very ________.