_____ at in this way, the present economic situation doesn't seem so gloomy.
B
暂无解析
____ you were busy, I wouldn’t have bothered you with questions.
John'sscoreonthetestisthehighestintheclass;he____lastnight.
Even if his letter（） tomorrow ，it（） too late to do anything.
ProfessorJohnsonissaid_____somesignificantadvanceinhisresearchinthepastyears.