Ответ:

1. This exhibition was visited by 10000 people last week

2. Sam sends many e-mail every day.

3. Tom sent on a business trip to Japan last month

4. Tousands of tourists visit this site every day

5. The hurricane destroyed many houses last year

6. This house was destroyed by the fire last night

If Peter come to my place we will go to play in the yard

If Peter doesn't come to my place, I will watch TV

If Frank's parents have their holidays in summer, they will go to the seaside

If they have their holidays in winter, they will stay at home

If the fog thickens, Harold will put up the tent for the night

When I finish my work, I will go to the cinema

We will buy this book as soon as our mother will give us some money

When we come to your place you will show us your present

I will return you your ping when you ask me

I will wait for my friend until he comes form the shop

My father will start writing before the ...