参考答案
一、was  flied  planted  were  drank  played  went  made  did  danced  

worried   asked   tasted   ate drew put threw kicked passed did

二、was was were were

三、

1.It was not exciting.

Is it exciting?

Yes,it is. No,it isn't.

2.All the students weren't very excited.

Were all the students are very excited?

Yes,they were. No,they weren't.

四、am was were are

五、There wasn't a car in front of the house just now.

Was there a car in front of the house just now?

Yes it was. No,it wasn't.

六、lived ate had picked made played cooked sang danced

七、1.Su Hai didn't take some photos at the Sports day.

Did Su Hai take some photos at the Sports day?

Yes,he did. No,he didn't.

2.Nancy didn't go to school early.

Did Nancy go to school early?

Yes,she did. No,she didn't.