She smiled happily，________ a set of amazing white teeth to us.
A．exposing B．being exposed
C．exposed D．to expose
John Snow found that the polluted water was _________ for the outbreak of cholera.
A. to blame B. to be blamed C. blamed D. blaming
--Good afternoon. Can I help you?
--My bike is broken. I’d like to have it______, sir.
A. repaired B. repairing
C. to repair D. to be repaired
________by the beauty of nature, the girl from London decided to spend another two days on the farm.
A．Attracting B．Attracted
C．To be attracted D．Having attracted
With a lot of difficult problems _________, the manager felt worried all the time.
A. settled B. to be settled C. settling D. to settle
_____ was obvious ______ the manager was waiting for LiFang to leave.
A. It, that B. This, that C. That, what D. What, that
