一、

1．was¹

2．were

3．walked

4．did² not

5．were

二、

1．sent

2．were

3．phoned

4．knocked³

5．went

6．didn't like

三、

1．Did, made⁴

2．come, didn't

3．did, buy

4．was

5．caught

四、

1．Did Xia Lin do any washing…

2．What did you do…

3．He didn't have lunch…

4．Who visited our school then?

5．How much ink was there in the bottle?

6．They liked the city, too．