When first ________ to the market, the computer software . was not a success due to its complexity in operation.
Traditionally, college students hold a graduation ceremony to encourage themselves before they _______ on their life journey.
Our school requires that all students _______ on the campus.
At the routine office meeting, the headmaster insisted that the problems _______ paid special attention to.
_______ basic first-aid techniques will help you respond quickly to emergencies.
People develop _______ preference for a particular style of learning at _______ early age and these preferences affect learning.