It is a bad habit to ____ others’ homework.You should do ____homework by yourself.

I’ve invented a game that will keep the kids _____for hours[ ]

When he was at a loss as to which direction to go _______, he tried to find someone for help, but there was ______ to ______.

Someone who lacks staying power and perseverance is unlikely to________a good researcher. [ ]

How are you getting along with your project?— I was about to give up when an idea occurred to me ________ I could work with my roommate Tim. [ ]