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。
Theoceansdonotsomuchdividetheworld_______uniteit
________，hehadnotimetorest.
Theprofessorworkedfor7hoursata________.
Thegovernmentfinally________allthedocumentsrelatingtothewar.
英语翻译：你为什么把失败视为当然呢?