【题目】Being __________ to the sunlight for a long time is harmful to your skin.
A.exposed
B.burnt
C.touched
D.closed

【答案】A
【解析】expose意为“使暴露”，常与介词to连用。burn意为“燃烧”；touch意为“触摸”；close意为“关闭”。句意：在阳光下暴晒很长时间对皮肤有害。