—Is Mr. Smith over there?—It ________ be him. He has gone to Beijing on business.
My life ________ a lot in the last few years.
— Can you follow me ? — Sorry, I can’t. Could you please speak a little more ?
— your grandfather to be a farmer? —Yes. But now he is a driver.
—Whose book is this ? —Let me see. It ________ be Cindy’s. You can see her name on it .
I always go to sleep the light .