Mr. Smith is always on time for everything. How ____ it be that he was late for the important meeting?
| A．should | B．can |
| C．may | D．must |
Her answer was so confused that the teacher could hardly make any ______ of it.
| A．idea | B．sense | C．difference | D．meaning |
His mother had talked to him for many minutes while he was watching TV, But_______.
| A．a little did he hear | B．little did he hear |
| C．little heard he | D．a little heard he |
It seems that creative thinking, which is one of the most___________skills in society, is a matter of habits.
| A．high valued | B．high valuing | C．highly valued | D．highly valuing |
We should bring ______ to his attention that he’s still poor in health.
| A．/ | B．something | C．this | D．it |
— Did the door-keeper let you in?
— No. ____I tried to tell him I was your relative, he just didn’t believe me.
| A．Whether | B．Whatever | C．No matter | D．However |