Seeing someone in trouble, he always _____help to them. [ ]

It won’t be long _______ you regretwhat you’ve done.

This article may shock some sensitive readers, _____I offer my apologies in advance.

What do you think of teaching, Bob?—I find it fun and challenging. It is a job ______ you are doing something serious but interesting.

Do you often ________ English books —Of course.