Many a scientist ______________ devoted their lives to science.
A: have
B: has
C: is
D: are
A: have
B: has
C: is
D: are
举一反三
- _______ to work long hours alone in the lab and sacrifice his or her personal life. A: Many a scientists have B: Many scientist has C: Many a scientist has D: Many scientists
- Many a young scientist ________ engaged in the research work. A: have B: has C: have been D: has been
- He was a world-famous scientist who ______ all his life to science. A: drove B: deleted C: devoted D: delivered
- 1. Which of the following options is the reason why chemistry is known as "the central science of the 21st century"? A: Chemistry is the bridge between many disciplines and involves all aspects of human life. B: Chemistry is a central, practical and creative science. C: Chemistry is an experimental science. D: The history of the development of science and technology has eloquently proved this statement.
- This scholar, ____ daily in the British Museum, has devoted his life to the history of science. A: to see B: to be seen C: to be seeing D: saw