He was wearing a pair of sunglasses and I didn’t _____him at first.

s an order, you have no rightto refuse it; just_________

Why not watch the popular TV program “If You Are The One” (非诚勿扰)—_________________.

The workers are so _____ to the noise of the machine that they don’t even notice it during their work. [ ]

She also learned a kind of alphabet for the blind?in which different finger positions ________ different letters of the alphabet.[ ]