When the teacher came in, the students pretended _____ the text.
| A．to read | B．reading |
| C．to have read | D．to be reading |
Liu Xiang is believed _____ over $ 20 million in advertisements last year alone.
| A．to earn | B．have earned | C．to have earned | D．having earned |
The _______ boy made the police and his family _______.
| A．gone; puzzled | B．missing; puzzled | C．missing;puzzling | D．lost; puzzling |
Kathy ______ some French while she was away on a business trip in France.
| A．picked up | B．took up | C．made up | D．turned up |
Scientists are convinced _____ the positive effect of laughter _____ physical and mental health.
| A．of; at | B．by; in | C．of; on | D．on; at |
Take your time — it’s just_____ short distance from here to_____ restaurant.
| A．不填；the | B．a; the | C．the; a | D．不填；a |