Q311
Up to now, the predicted Millennium computer bug . . . . . . . . very few problems, although many scientists last year . . . . . . . . a catastrophe.
A.
has been causing/have predicted
B.
is causing/predict
C.
causes/were predicting
D.
caused/have been predicting
E.
has caused/predicted
AnswerAnswer: Option E
Solution
Answer: Option E
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