下列各句中，没有语病的一句是

Where’s your Mom, Xiao Hong ––She ____ to music in her room.

They did not find _____ to prepare for the worstconditions they might meet. [ ]

If law and order as well as rules and regulations______, neither the citizen nor his property is safe.

_____ I admit that all these problems are difficult, Idon’t agree that they cannot be solved.