I heard my sister ________ an English song when I passed by her room last night.
One thing kept in our mind is ___ we would never forget to show our greatest appreciation for our loved and beloved ones.
___, but he still couldn't understand the logical connection of the two subjects.
It was no surprise that an awful accident ____ occur the day when they were drunk.
___ people food, jobs, housing, justice, compassion and equality is what a government should first consider after a natural disaster strikes.
As we know, a schedule may be more appropriately expnessed and analyzed if it is put a graph.