[单项选择]What were the villagers doing when the explosion occurred
A. They were celebrating a festival.
B. They were doing experiments.
C. They were working in the factory.
D. They were idling in the street.

[单项选择]—What were you doing when I called you yesterday afternoon
—I ______ my homework and I was starting to take a bath.
A. had just finished
B. was finished
C. have already finished
D. was going to finish

[单项选择]What were lord and Lady Chestfield doing when the thieves broke into their house（）
A. They were drawing pictures.
B. They were watching TV.
C. They were making a telephone call.
D. They were tidying up the drawing room.

[单项选择]What were the crew of the submarine doing when the accidental happened
A. On the way to visit another country.
B. On the way to finish some task.
C. Doing some exercises.
D. Doing some experiment.

[单项选择]

M: What were you doing when Bill got here
M: I was talking to Ed and Fred.

Who came last（　）.
A. Bill．
B. The Woman．
C. E

[单项选择]
What were Jack and I doing when we saw the cat [A] Climbing the tree． [B] Playing in the garden． [C] Playing in the room．

[单项选择]What were the nine children doing while Carolyn was baking cookies
A. They were sleeping.
B. They were running around.
C. They were coloring pictures.

[填空题]What happened when a mother and her daughter were sitting in their room ______ broke out.

[单项选择]—What were you up to when your parents came in
—I ______ for a while and ______ some reading.
A. was playing; was going to do
B. played; did
C. had played; was going to do
D. had played; did

[单项选择]

M: What were you doing at twelve last night
W: I was playing cards with my kids in the kitchen.
M: Do your kids always go to bed that late
W: Not on weekdays.
M: Wasn’t your husband with you then
W: He was away on business in New York. He will be back late this evening.
M: Anything unusual happened
W: The light suddenly went out while we were playing. We remained silent at the table for some moments. After a while, we all heard glass breaking somewhere on the floor above.
M: Do you mean a window
W: I’m not sure whether it was a window or a glass or something else.
M: Didn’t any one of you hear a cry or a fight Didn’t you even consider going up for a look
W: We were frightened at the beginning and then went to bed as it was quiet all around.

When did the event happen（　）.
A. At weekend.
B. On Thursday.
C. On Tuesday.