The how­to book can be of helpto________wants to do the job.

Temporary failure is not to be feared. We must bear it in mind that the pains-taking efforts we have made will ______ in the long run.

I am sorry to have kept you for a long time.

rty, which had been greatly _____,was spoiled by the rude behavior of an uninvited guest.

Had I known about this computer program, a huge amountof time and energy .