He is very old, he still works very hard.A. butB. ifC. whenD. as

发布时间：2020-08-17 06:24:19

He is very old,      he still works very hard.
A. but
B. if
C. when
D. as

网友回答

(答案→)A. but
B. if
C. when
D. as
解析：考查连词：A. but 但是，B. if 如果，C. when当…时候，D. as正如，因为，随着，句意：他老了，但是还是工作很努力。两句话是转折关系，选A。
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