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will learn would learn have learned will have learned
covering having covered to cover to have covered
sticking stuck to be stuck to have stuck
make up make out make for make up for
A.were recognized have recognized recognized have been recognized
learn… would have have learned… would have learn… will have have learned… will have
How great a man How great men What a great man What great men
have been learning learn have learn is learning
have reminded are reminded were reminding had been reminded
covering having covered to cover to have covered
offers; leave provides; make supplies; give gives; have
have reminded are reminded were reminded had been reminded
A. were recognized have recognized recognized have been recognized
do，learn did，learn have，learn have，learned
have reminded are reminded were reminding had been reminded
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