Question

Those who don’t get their sufficient sleep are actually sending a(n) _____ to severe problems in their life.

A．invitation

B．warning

C．explanation

D．solution

Answer 1

A

这题考查词义辨析：invitation邀请，诱因， warning警告，explanation解释， solution解决方法。句意是：得不到有效睡眠的人会诱发严重的问题。选A。