He had promised me to come to the party, and _____.

“Perhaps we need to send for Dr. Smith to see what we can do about it,” Father suggested ________ to his neighbor who had come to discuss the problem.

Why were you upset? The headteacher wasn’t blaming anyone. He         said things like that could be avoided. 

 ________ the machine begins to work, you can’t stop it _____.

We’ll go early．     ，we may not get a seat．