下列曲线图中，某商品的需求曲线（D）和供给曲线（S）相交于E点。若生产该商品的企业普遍提高劳动生产率，在其他条件不变的情况下，会引起E点向E'点方向移动。正确反映这一变化的曲线图是（）
—What are you going to do this afternoon? —I am going to the theatre with some friends. The play________quite early, so we________to the park after that.
—Are you still busy? —Yes, I________my work, and it won't take long.
Eat ________cake you like and leave the others for ________comes in late.
You look tired, ________working indoors you should be out for a walk.
Extra warmth from sunlight can put an additional ________on the air-conditioning system.
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