It took a great deal of courage to admit that all his efforts had been ____.
Though he has to __________ a hard time,he still holds a positive attitude towards life.
I’m having a party next Saturday;put it __________ in your diary so you don’t forget.
Every time __________ I called on him,he was very busy.
It took __________ building supplies to construct these energysaving houses.It took brains,too
__________ we could afford it,we wouldn’t go abroad for our holiday.