Complete the second sentence so that it means the sameas the first, using no more than 3 words.
1. Your bedroom is tidier than mine.
My bedroom isn't _________yours.
2. The new armchair isn't nearly as comfortable as the old one.
The old armchair is much _________the new one.
3. What is the price of this CD-ROM, please?
How_______this CD-ROM cost, please?
4. Learn to ski before you go on a winter holiday in the mountains.
Don't go on a winter holiday in the mountains until _______to ski.