While our city tries impatiently to change its appearance by tearing down old buildings, more and more citizens are suggesting ways to ___________ the historically important architecture

 On hearing the news of the accident in the coal mine，she ________ pale.

Doubting that the traveler carried drugs, the Customs officer stopped him and _______ his suitcase, but found nothing at all.

—How is your plan getting along?—I can’t carry on ________ any longer.Someone must help me.

The government is trying hard to give the people easy _____ to hospitals.