Let me the things for you.

One day we will manage to ______ the world______ this terrible disease—cancer.

Many strange new means of transport have been developed in our century, the strangest of _____ being perhaps the hovercraft(气垫船).

The house used to be my property, but now it is ________ an old lady[ ]

enables the pilot of an airliner totake off, fly and land in _____.