Tom kept quiet about the accident ____ lose his job.
| A．so not as to | B．so as not to | C．so as to not | D．not so as to |
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 |