While【studying】at college,he got to know the professor and learned a lot from him.
这是个省略句,完整的应该是 :
While【he was studying】at college,he got to know the professor and learned a lot from him.
while 表示当时的状态,用过去进行时,而前后主语都是he 可以省略he 和被动词 was
While【studying】at college,he got to know the professor and learned a lot from him.
这是个省略句,完整的应该是 :
While【he was studying】at college,he got to know the professor and learned a lot from him.
while 表示当时的状态,用过去进行时,而前后主语都是he 可以省略he 和被动词 was
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