______how others react to the book you have just readcreates an added pleasure.

How about your present salary？—My basic salary is about $500 and _____ I’ll receive some extra income

下列各句中，加点的成语使用最恰当的一句是（ ）

Dogs are kept to ______ the houses from thieves at night.

It’s reported that most of the lakes and damaged dams were safe but the risks of heavy rain and aftershocks ________.