Our country will try to make greater progress in improving people's living conditions，________low­income families.

----It’s a warm day, isn’t it?----Yes, it is _______ cold. I just wear a jacket.

I don’t want to read all these old newspapers, please tell me where the __ ones are. 

Noise is unpleasant, ________ when you are trying to sleep.

—What time do we have to be at the gate of the museum?  —______ the visitors begin to check in.