VI. There is one mistake in each of the following sentences. Find out and correct it
1. He has waited there for a quarter past six.
2. Surface mail is many cheaper than air mail.
3. They do their best to keeping the family happy.
4. The armchair is in the living room, among the television and sofa.
5. Tourists usually have a bus to the countryside.
6. He never goes home before he will finish his work.
7. Her last book is published in 20 languages years ago.
8. Take the raincoat with you in case it will rain.
9. They will give her the message as soon as she arrived.
10. Although it was raining heavily, but he went out without a raincoat.
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