Choose the best answer for each of the following sentences.

Let’s knock on their door to see ……… home.

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If I ……… my wallet at home this morning, I ……… money for lunch now.

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If you ………………… to me, you wouldn’t have got so much trouble.

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The campfire ………………… if it ………………… last night.

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It is too bad, Lam isn’t here. If he ……… here, he ………… what to do.

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………………… you work harder, you will be sacked.

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If you don’t know how to spell a word, you ……… look it up in the dictionary.

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If you take the ice out of the fridge, it …………………

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But for our parents, we ………………… successful in life.

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I will never talk to you again …… you apologize me ……… your being rude

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…………… have enough apples, she’ll make an apple pie this afternoon.

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If the sun …………………, we ………………… for a walk.

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We should do something to protect water from being polluted ………… we will have nothing to drink in the future.

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If we …….. the plans carefully, we would not have had so many serious mistakes.

Choose the best answer for each of the following sentences.

I think you should stop smoking.