②Knowing his son has been admitted into Harvard University, the father __________ joy.

　　③Last night the room was __________ but nothing was taken away.

　　[答案]　①burst out　②burst into　③burst in

　　2.

　　①Mary ________________ last night by a cyclist riding in the street.

　　②I tried __________ the door several times，but no one answered.

　　③He spent a few years ________________ Europe.

　　[答案]　①was knocked down　②knocking at

　　③knocking around

　　Ⅲ.单句改错

　　1．On hearing the news, she burst into crying.____________

　　[答案]　crying→tears或into→out

　　2．She ashamed of asking questions, so she kept silent all the time.____________

　　[答案]　第一个she后加was

　　3．His father says that he has never regretted to sending his son study abroad.____________

　　[答案]　去掉to

　　4．I was so surprised that I just stood there, held the notes in my hands.____________

　　[答案]　held→holding

5．I can't have gone through that bitter period without your generous