Peoplewhocan’t_______betweencolorsaresaidtobecolor-blind.
Robotsdifferfromautomaticmachines________aftercompletionofonespecifictask，theycanbereprogrammedbyacomputertodoanotherone.
ThelongestriverinCanadais________.
Itmakesgood________tobringanumbrella;itseemstoberainingtoday.
重写句子：Ihavecheckedmydocumentsseveraltimes.Istillcan’findttheproblem.(compoundsentence)
