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

Ifyoutrytolearntoomanythingsatatime,youmayget________.

Thereisanambiguityinthesentence“Heisahardbusinessman”dueto______.

We are interested in the weather because it _______ us so directly—what we wear, what we do and even how we feel.

Fromtheviewpointofwordformation,theword“smog”isa______.