Many strange new means of transport have been developed in our century, the strangest of _______ being perhaps the hovercraft(气垫船).
The________of life is being________ what I am or what I have.
—How is the patient now? Is he out of danger? —No,________than yesterday,I'm afraid.
The country life he was used to________greatly since 2002.
The shortage of supplies is________the price.
The science lab being built in our school is ____________ the former one.