I’m afraid none of us can __________ the machine that has been imported from abroad.Which of the following is wrong?

While visiting the robot exhibition, the professor kept nodding his head to express his _______ with his students’ work.

I would like to buy a house which has a(n) ____over the sea.

Due to the widespread________ of this medical technology, more diseases can be discovered and treated at an early stage.

Never judge a man by his _____ alone — you might be fooled by what he looks like.