---What do you think of the project put forward by the Blacks? --- Considering its real _______, it will be well worth putting into practice, I suppose.
My doctor advised me to reduce the amount of sugar ______ to the milk I drink.
---I haven’t got the reference book yet, but I’ll have a test on the subject next month.---Don’t worry. You ______ have it by Tuesday.
---What’s that unpleasant noise?---Oh, the road before the main gate ______.
You’ve failed to do what you ______ to and I’m afraid the teacher will blame you.
It is difficult for us to learn a lesson in life ______ we’ve actually had that lesson.