.Look! It _____be your uncle .—-It_____ be him . He has gone to Xi’an.

Zhong Nanshan, the famous medical scientist, has devoted most of his life useful ways in treating cough diseases.[ ]

___is well known is that Africa had contacts with India and the Red Sea civilizations from the earliest times．

Please join us. We need _____ actors in our play. [ ]

could you tell me___? Yes. Walk on, you can find a shoe store