Only after the woman had her own child ________ how difficult it was to be a mother.
Most American children go to state schools, but the private schools ______ be very good.
Children should make ______ a rule to wash hands before meals.
— I have never been to the United States before.— ______! Your spoken English is amazing.
In fact, he______ in bed all the morning without doing anything, but he ______ tome about that.
Britain, as well as many other industrialized countries, ______ major changes in the past 100 years.