2. take an umbrella in case it …. raining will rain rained rains

rains

Объяснение:

Это условное придаточное предложение, которое вводится союзом in case. Речь идет о возможности появления непредвиденных обстоятельств, против которых необходимо или желательно принять меры предосторожности.  

Take an umbrella in case it rains.  - Возьми (с собой) зонтик на случай дождя.

Was my friend at the library yesterday? No, he wasn't.

Were my parents angry yesterday morning? No, the weren't.

Were you cold this morning? Yes, I was.

Were your cousins in the park? Yes, they were.

Was the window opened before the lesson? Yes, it was.

Was your teacher at the library an hour ago? No, he wasn't.

Were your English books in your schoolbag? Yes, they were.

Was your mother in Paris last summer? No, she wasn't.

Were your parents at home on Monday? No, they weren't.

Were you happy last night?​ Yes, I was.

1. I can take photos.

I can't take photos. Can I take photos?

2. I must be at the stadium now.

I mustn't be at the stadium now. Must I be at the stadium now? Do I have to be at the stadium now?

3. You must learn sewing.

You mustn't learn swimming. Must you learn swimming?/ Do you have to learn swimming?

4. They must have won this game.

They mustn't have won this game. Must they have won this game?

5. We were to take part in the competition.

We weren't to take part in the competition. Were we to take part in the competition?

6. She ought to help her in knitting.

She oughtn't to help her in knitting. Ought she to help her in knitting?

7. My sister can make lace.

My sister can't make lace. Can my sister make lace?

8. You might be fond of boxing.

You mightn't be fond of boxing. Might you be fond of boxing?

9. They may enjoy swimming.

They may not enjoy swimming. May they enjoy swimming?

10. She can play tennis very well.

She can't play tennis well. Can she play tennis well?