A.not to go | B.don"t go | C.not go | D.won"t go |
A.speak | B.spoke | C.will speak | D.to speak |
A.Can | B.Shall | C.Will | D.Must |
|
A.must ring | B.might have rung | C.would ring | D.would have rung |
A.would never have realized | B.would never realize |
C.never realized | D.had never realized |
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