Jane was asked a lot of questions, but she didn’t answer of them.
Yesterday, I came across my former classmate, but his name ________ me, which made me embarrassed.
While working outdoors, Linda was ________ by the heat and fell to the ground, unconscious.
In fact fuels we burn and plant food we eat ________ their chemical energy in the form of heat.
Chengdu has focused on improving the surrounding countryside, ________ encouraging largescale city expansion.
Many people believe that hunger is only a problem in the developing countries.________, it is a problem all over the world.