【推荐1】I found her letter                     as I was looking through my files.

A．by accident

B．by design

C．by mistake

D．by force

【推荐2】When you apologize, you’re telling someone that you’re sorry for the hurt you caused , even if you didn’t do it ______ .

A．by mistake	B．on time
C．on purpose	D．by accident

【推荐3】—Did you plan to meet here?
—No, 　　     　　.

A．by accident	B．by mistake
C．by the way	D．by reason

【推荐1】When the woman saw that her son was OK after the car accident, she said _____, “Well, dear, you are the most important for me, not the expensive car. ”

A．in peace	B．in danger
C．in surprise	D．in relief

【推荐2】Much ________ my surprise, every student looked at me _________surprise when I came into the classroom

A．in; to

B．to; by

C．to; in

D．in; in

【推荐1】One evening when it was swarm, I stayed awake ___________ until half past eleven in order to have a good look at the moon by myself.

A．on average

B．on purpose

C．on sale

D．on schedule

【推荐2】After losing contact for twenty years, they met again _________ in a party．

A．by mistake	B．by coincidence
C．on purpose	D．on display

【推荐3】－Look! The telephone is broken. Someone damaged it ________ purpose.
－That may be right. But perhaps it was broken _________ accident.

A．on; by

B．by; by

C．on; on

D．by; on

【推荐1】City people enjoy going to the countryside ________ with organic food and vegetables on holidays.

A．to entertain	B．to be entertained
C．entertaining themselves	D．to be entertained themselves

【推荐2】All the citizens, young and old, walked and sang, beautifully ______ in new clothes of all kinds, _______ the success of their football team.

A．dressing; celebrating	B．wearing; to celebrate
C．dressed; to celebrate	D．worn; celebrating

【推荐3】______ understand fully how film reacts to light, it is necessary to study the chemicals in the film.

A．In order to	B．So as to
C．So that	D．In order that