A．lessonsB．teachingsC．coursesD．lectures
A. lessons
B. teachings
C. courses
D. lectures
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A．estateB．propertyC．wealthD．assets
A. estate
B. property
C. wealth
D. assets
What are the scientists at the University of California doing to help patients blink？
A. They are transplanting a piece of muscle from the leg to the eye.
B. They are doing surgeries on the eye to help patients blink.
C. They are doing tests of a new blink system on real patients.
D. They are developing artificial muscles to help patients blink.
A．gave upB．gave inC．gave outD．gave off
A. gave up
B. gave in
C. gave out
D. gave off
A．publicizedB．translatedC．appearedD．sold
A. publicized
B. translated
C. appeared
D. sold
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