24. — Someone is knocking at the door. It _________ be Tom.— No, it ________ be him; he has gone to Sydney.
A stubborn boy like him dosen’t learn from his mistakes______ he was punished badly.
—Let’s go to see the film Kung Fun Panda together.—Yes, ? I can’t wait to see it.
—He failed in the exam again. —He __________his teacher’s advice.
When first to the market, these products enjoy great success.
It is uncertain ______ side effect the medicine will bring about, although about two thousand patients have taken it.