—Glad to meet you.
—____________
| A．So do I. | B．How are you? |
| C．How do you do? | D．The same to you. |
Scientists are convinced _________ the positive effect of laughter ________ physical and mental health.
| A．of; at | B．by; in |
| C．of; on | D．on ; at |
The old painter is perfectly __________ to live in a hut and paints pictures all day.
| A．likely | B．fit | C．content | D．curious |
It was the boy, rather than his teacher, that ____ for what he had done.
| A．were to blame | B．were to blamed |
| C．was to blame | D．was to be blamed |
He found a lot of ________ were ________.
| A．passers-by；grown-ups | B．passer-bys；growns-up |
| C．passer-bys；grown-ups | D．passers-by；growns-up |
Mark never considers himself as ________ failure. On the contrary, he thinks he is on the road to _______ success.
| A．a；不填 | B．a; the |
| C．不填；a | D．the; 不填 |