.IfyouhavereallybeenstudyingEnglishforsolong,it’sabouttimeyou_____abletowritelettersinEnglish.
A、shouldbeB
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A leading ___________ intelligence and operations company has released its analysis of worldwide reported incidents of piracy and crime against mariners.
____ you were busy, I wouldn’t have bothered you with questions.
ProfessorJohnsonissaid_____somesignificantadvanceinhisresearchinthepastyears.
The（） in Janet‘s character has hindered her froom advancement in her career.
John's score on the test is the highest in the class ; （）he last night.
