________he is pleased with his success, Robert wonders what will happen to his private life.
| A．As | B．If | C．When | D．Although |
Although this medicine can cure you ________your illness, it has a bad effect____ you.
| A．for; in | B．for; on | C．of; on | D．of; at |
Only after the woman had her own child ________ how difficult it was to be a mother.
| A．she realized | B．had she realized |
| C．she had realized | D．did she realize |
Mrs. White showed her student some old maps _________from the library.
| A．to borrow | B．to be borrowed |
| C．borrowed | D．borrowing |
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 |