Question

When I was at school, I _____ up very late, reading storybooks.

A．used to stay	B．was used to stay
C．used to staying	D．am used to staying

Answer 1

A

考查短语搭配。used to do sth.过去常常做某事。句意：当我上学的时候，我常常看小说而睡得很迟。