سوال ۲ کنکور ارشد مهندسی مکانیک ۱۴۰۳

Option 4: exposed. Be exposed to means to be in contact with, or subjected to, something. Sunscreen is needed when the child's skin receives sunlight, so “she’s exposed to the sun” supplies the required meaning and collocation.

• 1) demonstrated means shown, illustrated, or proved. A child being “demonstrated to the sun” has no sensible meaning in this context.
• 2) confronted means faced with a problem, threat, or challenge; the usual construction is be confronted with. It does not express ordinary contact with sunlight.
• 3) invulnerable means incapable of being harmed, often in invulnerable to. Although that preposition fits, the meaning conflicts with the reason for wearing sunscreen.

Exam trick: Check both the preposition and the meaning: exposed to indicates contact, whereas invulnerable to indicates protection from harm.