Though the keys were pressed,nothing_____on the screen.( )A.appeared B.was appeared C.appears D.is appeared

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Though the keys were pressed,nothing_____on the screen.(       )A.appeared    B.was appeared       C.appears        D.is appeared

Though the keys were pressed,nothing_____on the screen.( )A.appeared B.was appeared C.appears D.is appeared
Though the keys were pressed,nothing_____on the screen.( )
A.appeared B.was appeared C.appears D.is appeared

Though the keys were pressed,nothing_____on the screen.( )A.appeared B.was appeared C.appears D.is appeared
A
appear 是不及物的,没有被动式 所以 B,D错
C 的时态不一致
全句意为:尽管按了键,但显示屏上没出现任何内容