See-sawing between partly good and faintly ominous,the news for the next four weeks was never distinct.

See-sawing between partly good and faintly ominous,the news for the next four weeks was never distinct.

A.从那以后的四个星期内，消息时而部分有所好转，时而又有点不妙，两种情况不断交替出现，一直没有明朗化。

B.从那之前的四个星期内，消息时有所好转，时而又有点不妙，两种情况不断交替出现，一直没有明朗化。

C.从那以后的四个星期内，消息时而部分有所好转但又变得不妙，不断交替改变，一直没有明朗化。

D.从那之前的四个星期内，消息时而部分有所好转，时而又有点不妙，两种情况不断交替出现，一直没有明朗化。

正确答案是A