--Comeputers are so useful.They can do almost everything!--Yes.But they ___ what to do--Comeputers are so useful.They can do almost everything!--Yes.But they ___ what to doA must be told B has to be known C．has to be known D．will know

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--Comeputers are so useful.They can do almost everything!--Yes.But they ___ what to do--Comeputers are so useful.They can do almost everything!--Yes.But they ___ what to doA must be told B has to be known C．has to be known D．will know

--Comeputers are so useful.They can do almost everything!--Yes.But they ___ what to do--Comeputers are so useful.They can do almost everything!--Yes.But they ___ what to doA must be told B has to be known C．has to be known D．will know
--Comeputers are so useful.They can do almost everything!--Yes.But they ___ what to do
--Comeputers are so useful.They can do almost everything!
--Yes.But they ___ what to do
A must be told
B has to be known
C．has to be known
D．will know

--Comeputers are so useful.They can do almost everything!--Yes.But they ___ what to do--Comeputers are so useful.They can do almost everything!--Yes.But they ___ what to doA must be told B has to be known C．has to be known D．will know
A .. BC应该是have to 因为主语是they..而且be known 是被知道,应该是know.根据语境不应用将来时,所以不选D

A

选A。

A

A。 must be told

--Comeputers are so useful.They can do almost everything!--Yes.But they ___ what to doA must be told B has to be known --Comeputers are so useful.They can do almost everything!--Yes.But they ___ what to do--Comeputers are so useful.They can do almost everything!--Yes.But they ___ what to doA must be told B has to be known C．has to be known D．will know --Comeputers are so useful.They can do almost everything!--Yes.But they ___ what to doA must be told B will tell C has to be known D will know 没理解题. comeputers are very useful in our lives,()they?A isn't B wasn't C doesn't D aren't You Are so you are so sweet you are so sweet you are so beautiful you are so sweet . you are so dead flowers are so beautiful you are so why are you so why are you so You are so each you are so why are you so you are so beautiful