—_____is your mother ? —A nurse. She works in a hospital. 

This morning I went to school in        a hurry         I left my notebook at home.

I don’t know _____ or not he will come . _______ he comes , I will call you .

--_____ did you ________the summer vacation?  -- It was terrible . I have too much homework to do .

    Ann is a girl,       she can climb that tall tree.