How manyteachers are there in your school—About two_________.

Our school life is ________________ happiness and sadness.

They often had fun ______ ball games before. But now they have no time ______ after-school activities.

The man we followed suddenly stopped ad looked as if ______whether he was going I the right direction.

The old man was so angry and spoke so fastthat none of his children understood ____ he said meant.