I'll be out for some time. ______ anything important happens, call me up immediately.
| A．In case | B．As if |
| C．Even though | D．Now that |
Hearing the _______ news, we all felt_______ .
| A．encouraging; encouraging | B．encouraged; encouraged |
| C．encouraged; encouraging | D．encouraging; encouraged |
_______the road, be careful.
| A．While crossing | B．When cross | C．Crossed | D．Being crossed |
_______twice, he didn't want to try again.
| A．Failed | B．Failing | C．Having failed | D．To fail |
______a nurse, she knew how to take care of a patient.
| A．Been | B．Being | C．To be | D．Be |
The______ look on his face suggested that he had passed the exam.
| A．exciting | B．tired | C．tiring | D．excited |