The professor worked for 7 hours at a ________.
A、stretchA
此题考查的是固定词组搭配。atastretch一口气地
The professor worked for 7 hours at a ________.
One can figure out the meaning of “ airmail ” to be “ mail by air ” by its ______.
Ithasbeenyears________Ireturnedhome.
Eachofusshould_______asideafewminutestohavearesteveryday.
If you try to learn too many things at a time, you may get ________.
