A series of lectures on radio engineering______scheduled.
A. have been
B. has been
C. are
D. had been
We learn from the last paragraph that______.
A. a baby dinosaur looks like a bird
B. T-rex is a kind of dinosaur figure familiar to kids
C. living feathered dinosaurs can still be found in certain parts of the world
D. scientists understand precisely how and why feathers first arose
The original purpose of feather was______.
A. to help dinosaurs fly
B. to keep dinosaurs warm
C. to distract predators
D. a mystery
We learn from the beginning of the passage that______.
A. scientists are split as to whether birds descended from dinosaurs
B. the bone similarities between birds and dinosaurs are a coincidence
C. fossils have proven that birds evolved from dinosaurs
D. the idea that birds are connected with dinosaurs has always been taken seriously
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