I don’tknow if Mr. Li ____ to the party this evening.–I think he will come if he ____ free.

I usually go there by train.— Why not _______ by boat for a change?[ ]

___ at sums than Jean, but better athistory.

oy was sittingat the desk, ______ hard when his mother got home

Studying abroad, the boy was exposed to a way of life_________he was not at all fanmiliar.