If your child tends to __________ children of her own age and push them round, try to arrange for him to play with older children who will have no trouble in holding their own.
Technology has quickened the rate _________ we communicate with the world around us.
Some people think it __________ privilege to study abroad, but it doesn’t make _________ sense if you go when you even cannot look after yourself.
--- I once got lost during my first visit to Beijing. -- Oh, did you? You _______ me as your guide.
How long do you think it will be _______ scientists succeed in providing a cure for cancer?
When my father lost his job our living _______ had to be cut to the bone.