To save class time, our teacher has ________ students do half of the exercises in class and complete the other half for our homework.
The April Fools' tradition is said ________ in the sixteenth century.
It is said that sixty percent of all energy ________ in the world today is being lost as wasted heat.
Under the environment of fierce competition, the only way John could imagine ________ stress was to get tougher by making greater efforts.
________ with conducting an interview by QQ online, a facetoface interview in person can provide people with more reliable details.
________ the instructions very carefully when filling in the form.