.If you have really been studying English for so long, it’s about time you _____ able to write letters in English.
B
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_____ regular training in nursing, she could hardly cope with the work at first.
Aleading___________intelligenceandoperationscompanyhasreleaseditsanalysisofworldwidereportedincidentsofpiracyandcrimeagainstmariners.
Priceshaverecentlyriseninorderto__________theincreasedcostofrawmaterials.
_____ their help, we would not have succeeded.