Why is John so happy—He is lucky and he has _____ one minute to finish his work, no more and no less.

I find this computer game ______ to play.

sor Zhang handed out the textbooks toall the students,except who had alreadytaken them.

29Internet，as well as newspapers and magazines，____an inportant part in our daily life

These are ____ erasers,and _____ arewhite.