—Why do you suggest we buy a new machine?—Because the old one has been damaged ______.
An advertisement is useful in ________ it lets customers know of the kinds of goods in the shops.
—I need some fresh air, so I am going out for a walk. —________.
—Don't you know that a proper amount of exercise a day will ________ to a person's health? —No wonder so many senior citizens do exercise in the square.
The home ________ the lion is Africa while the koala bear is native ________Australia.
You can't see anything clearly through a telescope unless it ________ correctly to your sight.