—I just wonder that made Mark Twain so famous a writer.—Of course his early experiences.
It’s uncertain _______ side effect the medicine will bring about , although about two thousand patients have taken it .
--Sorry, I have to _________ now. It is time for class. --- OK, I’ll call back later.
Written in a hurry , _____________. Which one of the following is right ?
The lost car of the Lees was found ___________ in the woods off the highway.
---Can those _________ at the back of the classroom hear me ?