From the viewpoint of word formation, the word “ smog” is a ______.

A good worker in a key spot could, so _______ as he kept up production, take all the coffee breaks he wanted.

One can figure out the meaning of “ airmail ” to be “ mail by air ” by its ______.

Wecannotleavethistoughjobtoaperson________.

Aliens are borrowed words which have retained their original pronunciation and spelling. Which of the following words comes from Chinese?