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If it __________, we'll stay at home.

• rain

• rains

When I ____________ home, I'll watch TV.

• come

• comes

We'll go to the cinema when it _____________ snowing.

• stops

• will stop

People will live longer if they __________ smoking.

• stop

• will stop

I ____________ you know when he comes.

• 'll let

• let

If I _________ you, I would take up swimming.

• was

• be

I ___________ be grateful if you could help me.

• will

• would

If I ____________, I would tell you.

• knew

• know

She would buy this dictionary if she _________ enough money.

• have

• had

If I had a car, I ________ pick you up.

• will

• would