—Kathy and her sister are so alike.—I can’t tell one from ____.
—Want to have the bungee jumping with me? —It’s out of the question! I ______ a try even if you paid me a million dollars!
You have to take some necessities such as ropes, a flash, boots, ______ you may get lost in the mountain if going hiking.
He insisted the person referred ______ put into prison at once.
After a pause for a drink, I took up my story just _______ I had left off.
His first lecture is of great use to our development. But his latest one is ______ worth attending.