Please let me know __________ you want to go or not.
Mary: Helen is a mere washer woman, yet she's now buying a big house. Carol: Yes. Because she's always saved ________.
Output is now six times ________ it was before liberation.
"Why did you go to the wrong class, Mr. Wang " "Well, I forget _______ I was supposed to go to."
I don't doubt ________ he'll come.
Why the explosion occurred was ____the laboratory attendant had been careless.