He doesn’t lack ______ to learn. You don’t have to tell or force him to do this or that.
— Hello, may I have an appointment with the doctor? — ____
— How about a game of chess? — ____
— I’m afraid I can’t finish the book this week. — ____.
— Don’t forget to take the message to my teacher. — ____.
— How many students are going to the Great Wall? — ____.