been trying to advise them not to act that way, but my advice had no_________on them

Nowadays the doctors are trying their best to reduce the people’s fear they would be affected by the present disease called “Bird Flu （禽流感）”.

Where did you find Lily?— It is in the bookstore _________ she is working _________ I found her.

She _____ when I go to see her.

Can he take charge of the state-owned factory located in Shanghai?—-I’m afraid it’s ______ his ability