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1. My friend and I always prepare for our examination together.
 I took my English exam the day before yesterday, and got 'good' for it.
My friend's going to have his exam in two days' time. I hope he'll do well in it, too.

2. I'm going to the seadise on my holiday this year. I always spend my holiday by the sea. 
When I was away on hliday last year, I swam in the sea and sunbathed three hours a day.The doctor says I shouldn't stay in the sun after twelve o'clock.As I'm going to stay at the seaside, I'll go to the beach early in the morning, and be back home at eleven.

3. My sister is a teacher, so she usualy has two months' holiday in the summer. She's away on holiday now.She usually finishes work at the end of June and leaves Moscow early in July.
I haven 't had any letters from her yet, but I hope to hear from her soon. She'll be back in Moscow late in August.