The professor worked for 7 hours at a ________.
A
此题考查的是固定词组搭配。atastretch一口气地。
Itisvitalthatthework_______intime.
英语翻译：他是公司的首席执行官,但总是平易近人。
Ayearlater，withthenation’seconomy________，Bush’sapprovalratingdroppedbelow40percent
Theoutlineofrooftopsandchimneys________againstthepalesky.
Neverbefore_______sorapidlydevelopingasitistoday．
