Only those who have the patience to do simple things perfectly ever _________ the skill to do difficult things easily.
A computer can only do ____ you have instructed it to do.
It wasn't until nearly a month later________I received the manager's reply .
______ is no possibility _____ the shy girl can win the first prize in the English speech contest.
Generally speaking, nobody will work with _____ has a bad virtue.
— Have you found your English book? — I am not sure ____ I could have left it.