Правильно ли составлено это предложение? the cat catches a lot of mouse

Нет, неправильно. множественное число существительного  mouse - mice, поэтому надо так: the cat catches a lot of mice

2.

A: What did you do last summer?

B: I worked at a petrol station.

A: What did you have to do?

B: I had to wash windscreens.

A: Did you have to serve the customers?

B: No, I didn't.

3.

A: What did you do last summer?

B: I worked at a swimming pool.

A: What did you have to do?

B: I had to teach swimming.

A: Did you have to play with small kids?

B: No, I didn't.

4.

A: What did you do last summer?

B: I worked in a hotel.

A: What did you have to do?

B: I had to carry the customers' luggage.

A: Did you have to deal with money?

B: No, I didn't.

5.

A: What did you do last summer?

B: I worked at a fast-food bar.

A: What did you have to do?

B: I had to prepare the food.

A: Did you have to clean?

B: No, I didn't.

1. nick asked when i was going to have a party. 2. julia said that there were many holidays during the year. 3. julia said to dorothy to polish the floor, clean the carpets before the party. 4. nick asked if the guests would come the next day. 5. nick asked if the guests had come the day before. 6. nick asked when we had had a party. 7. i said that we had decided to celebrate that holiday together. (i asked if we had decided to celebrate that holiday together . - если это вопросительное предложение ) в последнем предложении ( 7 ) знак вопроса не к месту.