Mike isAmerican boy .He studies inuniversity in Lanzhou.
Most animals have little connection with animals of a different kind, _______ they hunt them for food.
Mary, is that umbrella ______?— No. It belongs to Jane.
What do you wantwhen you grow up?
Look at ______ book on the desk . Is it ______ useful one ?–Yes, it is . In the book there is much advice on how to learn math well.