—Charlie has been nowhere for three days. What has happened to him?
—Didn’t you know he had gone to Hong Kong?
A．in sight B．in place C．in face D．in use
The elderly mother sits in the armchair, at the family picture on the wall quietly.
A．staring B．being stared C．stared D．to stare
—Doesn’t he feel impolite when he laughs with his mouth full of food?
—I will ask him to pay attention to his behavior.
A．it B．that C．this D．these
—I can’t help you with he problem, for I with my homework.
—Thank you all the same.
A．am occupying B．occupy C．am occupied D．was occupied
By law, doctors are banned the kickback(回扣).
A．to accept B．to be accepted
C．from being accepted D．from accepting
Many people worry that air pollution might changes in the weather around the world.
A．add to B．lead to C．turn to D．belong to
