She didn’t know__________she could express her ideas clearly when she was invited to speak at the meeting.

—When did you finish your homework last night?—A bit late, ________ my father came back home from work.

My father was preparing for his speech __ my mother was doing some washing last night.

_______ Mr. Smith is not rich, ________he always gives money to the poor.

We never know we will succeed ________ we actually try.