—My son is lost . Have you seen a boy passing by here?—I saw boy hidden behind tree over there . You may go and have a look.
This book ______ 50 maps, _______ 20 of America’s.
Today, we’ll discuss a number of cases______beginners of English fail to use the language properly.
Recently I bought a secondhand car, ______was very low.
—How did you find the talk this morning? —______.
There is no possibility ________ he will keep his word.He is always telling lies.